The Vicious Female Character at the End of Days Chapter -- Discussion

Seriously??? Why does this novel has such high ratings? I dont get why the MC has to seduce someone to stay alive. Cant she become useful in some other way to the team? Why does she always wanted to be protected? Why cant she become strong and protect herself?

The task of the system is for her to seduce all the ML? What is the use in hurting so many people? The FL just treats them as some characters which she can make use of. She never thinks that they have feelings too and she is hurting them.