Phoenix of Nirvana

When a loser boy transforms into a beautiful school beauty, and he actually has superpowers after being reborn? What's going on? There are still monsters in this world? ! "Hey, hey, why are you here to kill me!" Let's see how she survives in this real world, and how does she face a boy's confession? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.