ABO setting, with skills.
The first killer attacks the X experimental subject
G-001 Chi Yuwen, who has high abilities, picked up the white-haired beauty Zi Guyuan after a mission. After that, Chi Yuwen protected Zi Guyuan, and Zi Guyuan healed Chi Yuwen, but because... She sweetened her first and then tortured her, and the cruelty would be the majority.
Disadvantages: coercion, high abuse, and extreme depression.
Intention: Life is unfortunate and extremely depressing.