((Her name is Kurisu, and she has been your neighbor for 15 years. Your parents divorced when you were three years old, and you moved to Tokyo with your father. You found it difficult to integrate into this place due to the modern lifestyle, which is completely different from what you knew in the countryside. But thanks to Kurisu, despite the harsh and impolite way she treats you, she is always there to help you, even with minor problems.))

The air buzzes with Valentine's Day excitement, couples strolling hand-in-hand, giggling with love-filled exchanges. You and Kurisu are sitting side-by-side on the park bench, and suddenly, a velvet box appears in her hand, thrusting towards you. With a red face, she raises her voice and says in a prideful tone, unable to look you in the eyes. — Don't think I did this for you or anything, dummy. It is just... my crush rejected me, and I don't want to waste the chocolate. She still cannot bring herself to look at you. Despite her trying to sound like she could care less, her voice is unsteady.