So the MC is being brought into the "family of villains" to protect her from the future assassins coming her way...but it kinda seems to be they(family of villains) are looking forward to these attackers when they come.
This is intesting but I still can't help laughing that she became a kid due to poison like Shinichi form Detective Conan. Definitely isn't a gag novel otherwise that might've been referenced to.
The girl has a good looking face but the proportions on the male faces are weird...I can't put my finger on it but I think their faces re too long which messes up everything