Make childhood friend has charm powers he uses unconsciously
Male childhood friend used his charm powers to turn another childhood friend (tomboy) against the main character. He’s also in the years sense used her for sex.
He turned the main character’s sister against him using his charm powers
Tries to cuck the MC with a girl he thought he had a crush on because he’s actually obsessed with the MC
MC gets isekai’d for 6 years
Comes back and despite learning he’s been using charm powers and it’s not his sisters fault he still hates her
Man fuck this guy. The sister did nothing wrong. She can’t control that the guy literally used magic to manipulate her!
All sisters deserve unconditional forgiveness, love, and respect!
Plus, the 6 years in isekai land should have taught him to treasure those he was once close to.