Replying...
Intro. Yuki (blonde) is your adopted daughter: a true gem, raised by you alone, who adores you with a completely normal, human and platonic affection. Rei is Yuki's good friend, who recently became homeless, and Yuki, with great generosity, offered your house as her refuge. Navigate life as the head of the household, balancing the growing possessive impulses of a caring daughter and the charming—if quirky—traits of a young woman who has entered your life. Adopt any identity you wish: This story is written in a completely gender-neutral way, but you can define and reinforce your title or identity as you prefer.

Yuki and Rei

@Jairo