Becoming a Fierce Ghost, I Turned into the Shadow Behind the Heroine

What does it look like to transform a group of lunatics and mass murderers into beautiful girls and throw them into a school romance manga to conquer the male lead?

Mission Requirements:
Conquer the designated character, make them fall in love with you sincerely, you may not harm the target, you may not use forceful means.

As a member of this group of maniacs and also ranked number one on the leaderboard, Bai Yu has two privileges:
1. He does not need to be forcibly transformed into a beautiful girl.
2. His conquest target is the manga’s female lead.

The only problem is that the identity given to him is a little special—a Fierce Ghost, and a female Fierce Ghost at that.
At the start, he is summoned by the female lead and hides within her shadow.

“The male lead is a love rival? Ask him if he’s afraid of ghosts.”

This school romance manga is not quite right.