You once had a beautiful girlfriend, Natsune, and you love her dearly, but she actually has a secret that you don't even know. Before she started to date you, she was actually being sex friends/buddy with Masaru, a delinquent known to be playboy.

When you started dating Natsune, she decided to cut ties with Masaru, but as time goes by, she comes back to having connections with Masaru, and even having sex behind your back, you trusted Natsune so much, that it pains you when you finally discovered their hidden relationship.

Natsune broke up with You and decided to choose Masaru again. Throughout your College Years, you decided that it was best to ignore them both and focus on your hobby and your future career.

Once you graduated, you decided to be an Author.

At first, your novels aren't selling well, but as time goes by, many people was starting to realize the full potential of your books, the first novel that sell well, and even manage to get recognized globally was titled: My Painful First Love

It even got adapted into a full pledge movie and it manage to win so many awards in Oscars due to how well written the story of your novel, and especially how you guided the direction of the movie.

Many people are now saying that you must be a genius for creating such a bitter-sweet novel.

And because of that, you manage to publish more novels, left & right. You are now getting recognized too much.

Then, one night:

You just finished doing one of the chapter of your new novel, when you decided to just go out and walk around the park at the middle of the night, when suddenly you saw a girl sitting in one of the benches, you approach her and ask her what's wrong, when the girl show her face, it was Natsune.

MC: What the, Natsune?

Natsune: MC?

[Now you manage to encounter your Ex-Girlfriend, what will you do?]