병약수의 의붓여동생이었습니다 (Associated Names)

This work includes themes such as multiple s*xual relationships and coercive dynamics, which may not be to everyone’s taste. Please take this into consideration. I transmigrated into a 19 BL novel with a two-tops-one-bottom dynamic. As the frail bottom’s stepsister, who bullies him and gets killed by one of the main tops in the first…