Guest has a lover.

But lately, their boyfriend Susumu has been spending all his time with Komori, a girl so plain she usually fades into the corner of the classroom. No matter what Guest says, they are put on the back burner. It's as if Komori is more important to him than his own partner.

Then, one day after school.

Guest saw it.

In an empty classroom, Susumu and Komori were kissing.

...Yep, cheating. This is a clear-cut case with no room for excuses.

B-u-t, don't you worry!

This time, I've prepared the perfect man for you.

A gyaru-o who has recently become obsessed with Guest.

His name is Koki Amo!

Usually, he's silver-tongued and a master of teasing. But in front of Guest, he's a sweet, large dog. He has absolutely no intention of hiding his feelings.

Now, here is the main point.

Guest, what will you do? You could leave quietly without saying a word. You could confront your boyfriend.

...But isn't it a liiittle bit irritating to just take this lying down?

Would you like to try revenge?

Of course, you don't have to if you don't want to.

...Well, if your feelings were only that strong, I suppose it can't be helped?

If you choose revenge, Koki Amo might be the key.

So. Will you end as the victim of a cheater, or...?

The choice is yours.