My Beautiful Girlfriend Cheated on Me, so I found Comfort in Having a Relationship with Her Little Sister - Chapter 5

Chapter 5

It is now lunchtime—

‘Senpai, can you come to the audio visual room?’

Yume sent me a message saying so.

At that moment, a chill run down my spine.

With shaking hands.

‘Okay.’

I replied her so.

Why does Yume want to meet me at school?

It is very risky, Mana could find out about this.

“I’m sorry Saito. I have something I got to take care.”

“Ah, I see. Okay then.”

“I’m really sorry.”

I get up from my seat and hurriedly leave the classroom.

Don’t tell me it’s about Mana again.

When I arrive at the audio visual room. I see Yume standing right in front of it.

See gestures me by putting her index finger in front of her lips like she did yesterday.

“Yume…what’s wrong?”

Please don’t let it be about Mana again.

I hope so in my heart.

“Senpai, I just happened to see…Nee-san going into the audio visual room with a guy♡”

No one would come to the audio visual room during lunch break.

It’s a perfect place for couples to flirt because the room itself is soundproof.

No, I shouldn’t think about the worst.

Maybe she is not having sex with some guy inside…

What am I talking about?

What an idiot I am.

Even after I find out Mana is cheating on me, I can’t bring myself to hate her.

I still love her.

“Do you know what year the guy who went inside with Mana is?”

“Yes♡ I saw he was wearing green shoes, so he must be a third grade student.”

So that means he is my senpai.

“But I couldn’t see his face clearly. I’m sorry.”

“No, you’ve done enough. Thank you, Yume.”

Yume chuckles as I thanked her.

“Nee-san have such a strong sex drive, doesn’t she? I can’t believe they are doing it at school. Senpai, come closer and listen closely. You can hear Nee-san’s lewd moans.”

Gulping, I bring my ear closer to the door.

“Ahnnn…”

I heard the same moans as yesterday.

The moment I heard the voice, my whole body becomes weak and I fall on both of my knees.

Is this real? Is she being serious right now? She’s really doing it at school?

“I’m really sorry senpai♡”

Yume hugs me from behind and said so.

I can feel that she is purposely pressing her breasts onto my back.

“I’m sorry, I’m not in the mood for it.”

“I see…that’s too bad.”

Yume then moves away from me.

I stand up.

“Sorry, I need to go to the restroom.”

“Okay♡”

I start to walk to the restroom.

I feel really nauseous, I feel like throwing up.

But why do I feel nauseous now? Why didn’t I feel nauseous yesterday?

Damn it, damn it, damn it.

When I arrive at the restroom, there is no one here.

I immediately go inside a private room.

“Ueghh—”

I throw up vigorously.

Who is he? Who the hell was Mana with?

A third grade student…

Think…is there a boy in the third grade that Mana is close with?

“I definitely going to find that guy. I definitely going to find out who he is.”

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When I return to the classroom.

“Hey, you’re back?”

Saito said to me as he is eating my lunch.

“Just how many lunches do you eat…?”

“Hmm, you don’t look good. What happened? Did you get dumped!?”

Saito laughs out loud.

Well, he isn’t completely wrong, but it is far worse than he thinks.

Even though I know Mana is cheating on me, why do I still love her?

“Hey, seriously, are you okay?”

Oh no, my vision is getting blurry.

“Yeah, I’m fine—”

My vision goes dark and I fall to the ground.