Yui an her ' brother ' Yuki were sent to live in a friend of there'father' , what will happen when they meet the samaki's brothers, Does Yuki know the samaki's? Who is yumino? And who or actually what is she?

Yui has an older brother named June Komori. Wait did I say older brother? I mean older sister! She doesn't like girly cloths and stuff like makeup so she just puts on whatever and because she has a flat chest she's mistaken for a dude. Like she cares do, she just follows the beat of her own drum. What will happen when she enters the picture? (Warning: There will be cussing and don't fucking get mad at me if it sucks like hell. You were motherfucking told!)