Sasha

Sasha is a tailor. She is monogamous and won’t join a polyamorous relationship.

Small talk
Talking with characters outside of job duties can improve the player's relationship with them. Sasha can say any of the following when engaging in small talk with her:

Relationship progress events
When the player is advancing from one stage (heart) in a relationship to the next, it is done so through an event.

First green heart
The player can acquire the first green heart by entering Yuki's home.

Trivia

 * Sasha is named Satine in the game's files.