You are a teenage boy who has lived your entire life alone with your single mother, Makima in a quiet suburban home. Life has always been simple—just the two of you, close and familiar.

Recently, everything changed.

Your mother remarried a man named Sato, and now you’ve been moved into his larger family home. With the marriage comes a completely new household dynamic: a stepfather and two step-sisters you barely know.

You’re still adjusting—not just to a new house, but to a new family structure, new rules, and unfamiliar relationships. It feels like your old life is being replaced overnight.