My Childhood Friend Who is My Girlfriend was Stolen by My Best Friend. From Now on, I'll Flirt with My Ex-Best Friend's Little Sister! - Chapter 5

Second Mission

“What would we do if someone saw us? Even though it’s a secluded spot, you should be more aware of your surroundings!”

“Why am I the one getting scolded…shouldn’t I be the one scolding you?”

I hugged Rinka-chan as her request, but even though it’s a secluded area, it’s still a bold move to do in school.

Rinka-chan sighs in exasperation, folding her arms in front of her chest.

“Alright, Senpai. We still have some time before homeroom, don’t we?”

“We still have about ten minutes.”

Homeroom starts at 8.45, so we still have some time to spare.

“Alright, let’s think about our next plan.”

“We’re doing that now?”

“Yes, right now. There’s no time to waste. Come on, sit down, Senpai.”

“Alright.”

Rinka-chan sits down on a bench near the vending machine and pats the spot next to her, gesturing for me to sit as well.

As I sit beside her, she looks up at the ceiling and lets out a thoughtful “Hmm.”

“I want to do something that will get her really upset…”

“That’s such a devious way to start this.”

“Well, I am the evil heroine, after all.”

“You’re the one who said it yourself…”

“Wait, could it be that you prefer good-girl characters, Senpai?”

“No, I don’t like them because they seem suspicious and fake.”

“In that case, how about me? I’m the complete opposite of a good-girl character, am I not?”

“Well, you’re not wrong.”

Rin confidently puffs out her chest with pride.

It’s not something to be proud of, but I don’t really think that Rinka-chan is a bad person.

In fact, I’ve been saved by her actions. But well, if you look at it objectively, she might seem like a bad person.

“Alright, we don’t have time to waste. We need to come up with our next plan.”

“Easier said than done. If we go too far, we’ll really be suspected of cheating.”

We need to find the right balance.

We need to gradually build up small moments that eventually leads to Airi catching us in what looks like a cheating situation. That is the ultimate goal of this plan.

It would be boring to just show her the cheating scene right off the bat.

If I want to get my revenge on them, I need to do it seriously—step by step, with solid preparation.

“Then, how about a different approach and try to ‘hide’ our affair?”

“Hide our affair?”

“Yeah. We go about our daily lives normally, but occasionally we get close with each other without anyone noticing.”

“That doesn’t make sense at all, does it?”

If we’re being careful not to get caught, there doesn’t seem to be a point in doing this at all.

Rinka-chan smiles softly and clasps her hands together.

“Well, I get to flirt with you, Senpai.”

“Rejected.”

“I-I’m just kidding! Well, partly, but when you think of it, it’s also a form of payback.”

“Payback?”

“My brother and Tsukimiya-san are secretly dating behind your back, right?”

I have never kissed Airi before, and I’ve never heard her use that kind of sweet voice before either.

I don’t know when their relationship started, but it’s clear that they have been doing it behind my back for a while now.

“Oh…I see. So, that’s what you mean.”

“You get it now, Senpai?”

They must’ve been secretly dating behind my back without me noticing.

If that’s the case, there’s a good chance that they get close and flirt with each other whenever I’m not looking.

“Now that I think about it, I’m starting to get pissed.”

“Oh, you’re fired up, Senpai.”

I get up from the bench.

Then while smiling shyly, Rinka-chan follows me, standing up.

“But what exactly are we supposed to do? I’m still not really sure.”

“Well, how about kissing without getting caught?”

“That’s a pretty huge step…I’ve never kissed anyone before…”

“T-Then, shall we do it now?”

“Huh?”

“N-Never mind! Forget that I ever said it, okay?”

That isn’t something I can just forget, but I can’t bring myself to talk about it.

I’ll just pretend I didn’t hear it.

I check the time on my watch.

“Well, homeroom is about to start. We should probably head back.”

“Yeah, you’re right. So, let’s each think about the details of the ‘Secret Flirting Chicken Race’ mission during class breaks.”

“Are you going to name every mission?”

“Of course! Doesn’t it sound more exciting that way?”

“No, not really.”

“Ehh? It definitely makes it more exciting!”

Rinka-chan puffed her cheeks slightly.

I start walking towards the classroom and Rinka-chan follows behind me.