I Died… and All My Love Interests Went Insane

Summary

After I transmigrate into a Gary Stu novel as the evil male supporting lead, a system appears in my mind.

It tells me that as long as I can conquer one of the female leads, I will be able to return to my original world with a healthy body.

But I've failed in my conquest.

There are a few female leads in this novel. There's the fake heiress, Leslie Jackman, who I have grown up with and have viewed as my older sister. The true heiress, Miranda Suller, is a boxer who happens to be seatmates with me during our high school times.