📢 Maybe you see "V2" or "V3" and so on in the NOVEL TITLE, it means what VOLUMES the NOVEL is.
📢 Maybe you see "V2" or "V3" and so on in the NOVEL TITLE, it means what VOLUMES the NOVEL is.

V3 My Girlfriend Cheated so I’m Cheating To Prologue

Why Me?


Prologue: Why Me?

“So, I don’t recall applying for ‘Miss Muse’ at all!”

It was rare to hear Tohko Senpai raise her voice like that.

“But look, here it clearly states that Sakura Island, the circle you belong to, has applied to participate. This is the official email of a circle registered with the Circle Council, right?”

The Circle Council representative had been repeating the same thing.

As I listened to this exchange, I felt a subtle sense of discomfort.

Reflecting on the situation again…

I, Yuu Isshiki, had discovered half a year ago that “Karen Mitsumoto, my then-girlfriend, was cheating on me with Tetsuya Kamokura, a senior at our university.”

So, I contacted Tohko Senpai, Kamokura’s girlfriend.

Tohko Senpai and I decided to take a scathing revenge on Kamokura and Karen, which we executed at last year’s circle Christmas party.

Tohko Senpai and I successfully got our revenge on Karen and Kamokura.

This revenge plan definitely brought us closer.

I started to feel for Tohko Senpai not just as an aspiration, but as “someone important I want to be close to.”

I think Tohko Senpai also started to feel a sense of closeness to me.

She even suggested, “Let’s have our own Christmas redo, just the two of us.”

Then, in mid-February, when Tohko Senpai and I were on a date, we received a sudden announcement about “Tohko Senpai’s participation in Miss Muse.”

Tohko Senpai, known as “The Shadow Miss Castle City” and “The True Campus Queen,” is a beauty famous within the university and has been my crush since high school.

(Our houses and high school were close by.)

Not only is Tohko Senpai beautiful and graceful, but she is also intelligent, academically excellent, and a perfect example of beauty with brains.

Moreover, she has a figure that rivals that of a gravure idol!

However, Tohko Senpai always said, “I don’t want to stand out,” so she never participated in the Miss Castle City contest, despite others saying, “You’d definitely win if you entered.”

So why was it announced by the Circle Council that Tohko Senpai would participate in Miss Muse?

But Tohko Senpai had no recollection of this.

We contacted the Circle Council to cancel Tohko Senpai’s participation.

But it was hard to coordinate with the Circle Council.

It was the end of February before we finally managed to schedule a meeting.

And that brings us to today.

“How can you force someone into a contest against their will? It’s extremely rude to rank people without their consent!”

Tohko Senpai’s voice rose a notch.

She must be really upset.

“No, that’s not it. But this is a key event of the ‘May Festival,’ aimed at energizing student life. You know the importance of this event in welcoming freshmen, right?”

“I understand that, but…”

Tohko Senpai responded reluctantly.

The “May Festival,” or “Spring Festival,” is essentially a “spring university festival.” Unlike regular festivals, it’s not advertised externally and primarily targets Castle City University students (though it’s not exclusive).

The main purpose, as he said, is “to help freshmen acclimate to university life quickly.” Hence, it’s held on the second Saturday of May for one day, without stalls or similar activities.

The “Spring Festival” was a Circle Council’s initiative, but this year, it’s been officially adopted by the university.

“This is the important first year. The future of the May Festival depends on this event’s success. That’s why we really need Sakura Island’s cooperation.”

Tohko Senpai fell silent under pressure.

She has a weakness for this kind of approach.

Realizing this, the representative pressed the point.

“Also, Miss Muse is not just any beauty contest.”

“How is it different?”

“Miss Muse emphasizes diversity. So instead of using a single standard like traditional beauty contests, it selects nine goddesses based on their individual skills and personalities.”

“Nine goddesses?”

“Yes. Participants can showcase their skills in music, singing, painting, talking, knowledge – anything. They highlight their strengths and represent them. It’s not about selecting a winner or runner-up like in other contests.”

Tohko Senpai fell silent again, probably because the ‘ranking of feminine traits,’ which she disliked, was not a factor here.

But to silence Tohko Senpai to this extent, the other party was quite the debater.

The Circle Council representative added, “And participating in Miss Muse also benefits the circle you belong to.”

“What kind of benefits?”

“First, goddesses selected receive financial aid from the university. They also get priority in using facilities for the university festival. And most importantly, circles without a clubroom get one. These are significant benefits for any circle or club.”

Tohko Senpai fell silent for the third time.

Had the other party strategized against Tohko Senpai? They were hitting the nail on the head.

Indeed, as the representative said.

Our circle, Wakiai Ai, is a university-recognized circle of considerable size, but we don’t have a clubroom.

Previous circle leaders have applied for the “clubroom lottery” every year, but we rarely win.

“A clubroom,” “financial aid,” “priority in using facilities during the university festival” – these are indeed attractive to any circle.


“Even so, it’s wrong to force participation against the person’s will, right?”

I stepped forward and spoke.

“And you are?”

The representative looked at me as if to say, ‘don’t interfere.’

“First-year in the Faculty of Engineering, Yuu Isshiki. I belong to the same circle as Tohko Senpai.”

“And your point?”

“You said earlier that ‘Miss Muse emphasizes the diversity of women,’ right?”

“That’s correct.”

“Then shouldn’t the diversity of choosing ‘not to participate’ also be respected?”


The representative seemed taken aback, as if caught off guard.

“Tohko Senpai herself has said she doesn’t intend to participate. Therefore, regardless of who applied on behalf of the circle, her participation should be immediately canceled.”

“That is…”

The Circle Council representative looked around for help, but no one else intervened. In fact, it seemed like some of the girls agreed with me.

“However, participating in Miss Muse benefits the circle and enlivens university life. Especially, everyone is looking forward to Sakura Island’s participation.”

“I’ve heard that already. But it doesn’t justify forcing Tohko Senpai to participate against her will.”


“Is this Circle Council in the habit of forcing girls to participate in events against their will?”

“I’m not forcing anyone…”

The representative stumbled over his words.

I thought to myself, ‘I’ve won this.’

“Then please cancel Tohko Senpai’s participation. Just post a correction on the Circle Council’s website saying ‘Tohko Sakura Island’s participation was a mistake.'”

Just as I said this, a door at the back opened and a woman emerged.

“Hey there, Yuu-kun. What’s happening here?”

That drawn-out, sweet voice!

I was startled and stared intently at the woman.

It was Karen!

She was carrying a cardboard box.

“Tohko Senpai is here too. What brings you here today?”

The Council representative seemed relieved.

I didn’t miss that, but Karen’s arrival was unexpected for both me and Tohko Senpai.

“Yes, I had some things to clarify about my participation in Miss Muse.”

“Oh, Tohko Senpai, you’re entering Miss Muse too, right? Actually, Karen is participating as well!”

“You too, Karen?”

“Yes! It’s a festival, and it’s more fun to participate than just watch, right? Plus, if I get into Miss Muse, it benefits the circle.”

“But you quit our circle, didn’t you?”

When I asked that, Karen smiled and responded.

“I’m in a different circle now. I started one with my friends, called ‘Jue Meenion.’ It’s French for ‘cute toy,’ and I’m the representative!”

“You started your own circle?”

Tohko Senpai muttered, seemingly surprised.

“‘Jue Meenion,’ does that mean ‘cute toy’ in French?”

“That’s right! Tohko Senpai knows her stuff! I love cute and fun things, so I chose that name. And we’re officially recognized by the university!”

Karen ignored my question and answered like that.

Tohko Senpai seemed to ponder for a moment.

“So, what did you come to confirm?”

Karen placed the cardboard box on the table and approached us.

“The Circle Council’s SNS posted that ‘I’m entering Miss Muse.’ But I have no intention of participating, so I came to confirm that and, if I am indeed entered, to have it canceled.”

Karen opened her eyes and mouth wide in surprise, bringing her hands to her mouth.

“Tohko Senpai, are you really quitting Miss Muse?”

“I never intended to participate in the first place.”

“What a waste. Everyone is looking forward to Tohko Senpai’s participation.”

“Tohko Senpai didn’t enter of her own will.”

I interjected, but Karen continued as if she hadn’t heard me.

“Oh, what a pity. Karen wanted to compete against Tohko Senpai fair and square. This time for sure!”

Hearing “This time for sure,” Tohko Senpai’s eyes seemed to widen slightly.

Then Karen suddenly turned to me.

“Oh, that’s right. Then Yuu-kun, be my recommender!”


I was taken aback.

“Miss Muse allows up to four recommenders. So, Yuu-kun, please be mine!”

“Why should I be your recommender?”

“Because you’re my ex, right? You should understand Karen better than anyone.”

Saying that, Karen leaned in, clinging to my arm.

…It was so contrived…

I felt that way, but Tohko Senpai seemed displeased.

“Is it okay for you to ask Yuu to be your recommender, Karen?”

Tohko Senpai asked with a hint of discontent in her voice, clearly referencing the fact that I was upset about Karen’s cheating and the revenge we took at the Christmas party.

“It’s fine. Yuu-kun seems like he still hasn’t gotten over Karen.”


I was shocked and about to retort, but Karen continued.

“Ever since then, Yuu-kun is always around where Karen goes. We never met this often even when we were dating. Such convenient coincidences, huh?”

“What are you talking about…”

“Like before the economics exam, Yuu-kun sat next to me. When Karen forgot her textbook, you offered to share, saying ‘like when we were dating.’ Thanks to you, Karen was really saved.”

“Wait, that’s not…”

“Tohko Senpai, is that true?”

Tohko Senpai’s sharp gaze turned to me, her aura darkening.

“No, that’s… I mean…”

“Is what Karen said true?”

“Uh, well, yes, but… it’s not what Karen means… I don’t want to see her…”

“Even after breaking up, Yuu-kun is still kind to Karen. It makes Karen feel a little moved!”

Saying that, Karen pressed her body closer to me.

“Hey, hey, what are you saying! Get off me!”

Then Karen, still clinging to my arm, turned back to Tohko Senpai.

“So Yuu-kun, it’s okay if Karen takes him, right? Since he’s my ex, he knows me well, and ‘ex-boyfriend support’ is a plus for Karen~”

“I haven’t decided not to participate yet!”

Tohko Senpai said, closing her eyes tightly.

“I might still enter Miss Muse!”

She repeated the same words.

However, Karen looked puzzled.

“But, Tohko Senpai, didn’t you just say you were going to ‘cancel your Miss Muse entry’?”

“I did, but today’s main purpose was to clarify the facts first…”

“If you don’t make it clear whether you’re participating or not, you’ll cause trouble for the Council members.”

Tohko Senpai was silent for a while.

Then, clenching her fists that were hanging down and with a flushed face as if enduring pain, she finally spoke.

“Alright, alright! I’ll participate, I’ll join Miss Muse!”

Hearing this, Karen smoothly released my arm.

“Hmm, is that so? But it’s good news for the Council that Tohko Senpai is participating in Miss Muse. The event will surely be more exciting.”

Tohko Senpai, still with a red face, glared at Karen.

“Well then, Tohko Senpai. I need to get back to work. I’m looking forward to competing with you in Miss Muse.”

After that, Karen whispered to me in a low voice.

“By the way, if Tohko Senpai hadn’t entered, I really would have asked Yuu to be my recommender.”

“Are you sure about this?”

When we were alone after leaving the Circle Council office, I asked her that.

“Yeah, well, if someone from the circle really did apply on my behalf, I think it’s better to meet their expectations…”

But her voice trailed off weakly.

I couldn’t believe that Tohko Senpai’s declaration of participating in Miss Muse came from her heart.

And I suspected, “Could this be a scheme orchestrated by Karen?”

On the day the university exams ended, I overheard Karen talking about Miss Muse with some guys who seemed to be Council members, near an empty ground. They were discussing Tohko Senpai’s participation.

I was there entirely by chance; it wasn’t a place where many people usually come. I didn’t hear everything clearly because I was dozing off, but it had been bothering me.

“You don’t need to worry about what Karen said. It’s just cheap provocation.”

I didn’t mean to blame Tohko Senpai, but I thought, “It’s unlike her to be swayed by something Karen said.”

Tohko Senpai, still red-faced, looked down and spoke.

“Maybe… but I guess I have some unresolved feelings towards Karen. I got more upset than I could control…”

Indeed… I could understand that feeling well.

“Right. If I were provoked by Kamokura Senpai, I might react the same way.”

Tohko Senpai glanced at me briefly.

“It’s not about Tetsuya… that’s not it.”


When I asked her to clarify, Tohko Senpai decisively looked forward.

“Anyway, there’s no point in talking about the past. Now that I’ve decided to participate in Miss Muse, I’ll focus only on winning!”

“Understood! I’ll support you with all I have!”

Tohko Senpai and I looked at each other.

A smile spilled from both of us spontaneously.

It was the moment our goals and intentions aligned once again.

📢 Maybe you see "V2" or "V3" and so on in the NOVEL TITLE, it means what VOLUMES the NOVEL is.
My Girlfriend Cheated on Me With a Senior, so I’m Cheating on Her With His Girlfriend

My Girlfriend Cheated on Me With a Senior, so I’m Cheating on Her With His Girlfriend

Kanojo ga Senpai ni NTR-reta no de, Senpai no Kanojo wo NTR-masu, Kanojo NTR (LN), 彼女が先輩にNTRれたので、先輩の彼女をNTRます
Score 7.6
Status: Ongoing Type: Author: , Artist: , Released: 2021 Native Language: Japanese
“Touko-senpai! Please have an affair with me!” “Calm down, Isshiki-kun… I won’t be satisfied unless we make those two who cheated on us experience hell itself!” Isshiki Yuu was shocked by his girlfriend cheating on him, so he decided to cheat on her with the girlfriend of the boy who stole his girlfriend, Sakurajima Touko, who also happened to be the senpai he admires. As part of their plan, Touko proposed to have the greatest possible ‘payback’, and so she started to make Yuu into an attractive and popular man with girls!? His choice of clothes, the conversation topics, etc… Yuu finds himself in the middle of a crazy increase in his reputation with the girls; however, his feelings for Touko only continue to grow. As their plan continues to progress, the relationship between the two of them suddenly grows intimate… What is this ‘payback’ that the two who were cheated on will carry out on Christmas Eve?! What is the conclusion that awaits the two of them!? The curtains rise on a love comedy of revenge!


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