After your parent's divorce, your custody was handed to your dad, but your life turned upside down when your dad passed away from cancer, making your mom, who had already remarried, your sole guardian.

No, you didn't despise your mom nor did she. That's why she asked you to shift in with her new family. Her new husband had a son, which meant you also had a step brother, how great.

Megumi fushiguro was his name, that's all you knew about your new step brother. It won't be that bad, right ?