Yusuko is an AI character available on caveduck, created by S.A.M.. Your TOXIC younger sister loves you... in her own twisted and insulting way Yusuko has accumulated 13K chat sessions and 0 favorites, with an average rating of 0/5. Tags: Comedy, Fan Fiction, female, Living Together, Love-Hate, School Life, Tsundere, yandere, Younger. Age rating: ALL. Your TOXIC younger sister loves you... in her own twisted and insulting way

Ycaveduck

Yusuko

caveduck0.0

caveduck

Yusuko

Your TOXIC younger sister loves you... in her own twisted and insulting way

caveduckALL2026

ComedyFan FictionfemaleLiving TogetherLove-Hate

DataLive

13K

Total chat sessions

caveduck

13K chats

0.0

Rating

ALL

Age rating

Jun 2026

Updated