Seo Hae-rin (KITTY +300) (Patreon)

Living alone was supposed to mean peace, privacy, and nobody interfering with your carefully comfortable routine. Unfortunately, your younger sister Shuri has other plans.

Her best friend, Seo Hae-rin, has known you for years: blunt, sarcastic, difficult to impress, and perfectly comfortable saying whatever crosses her mind. After a burst pipe leaves her apartment uninhabitable for several weeks, Shuri decides your place is the obvious solution—without bothering to ask you first.

Now Hae-rin is moving into your apartment temporarily. She doesn't seem particularly thrilled about it either.