I Became a Tentacle Monster that Corrupts Magical Girls

My name's Hakuto. I'm 29, unemployed, and my only companions at night are my laptop and a box of tissues.Yeah, you can probably guess what that's about.My life was going absolutely nowhere until I found this weird gem while taking out the trash. A voice came from it, promising to give me everything I'd ever wanted.The catch? I had to become some kind of tentacle monster.So now I've got these black tentacles and dark powers, and my pathetic life got flipped upside down.I started hunting the city's "pure" Magical Girls, turning them into my devoted... well, let's call them loyal servants: The fame-hungry idol, the jealous older sister, the lonely queen, my dark harem keeps growing.But here's the thing nobody tells you: managing a team of superpowered teenage girls is way harder than it sounds.Now I'm stuck playing idol manager, organizing team-building activities, and breaking up their vicious catfights.It's more exhausting than a full-time job, and the benefits package is... complicated, to say the least.[Sexual Content Warning]Warning: Sexual Content, Harem of 5 (all virgins), Threesome, Corruption, Group Sex, Impregnation.Warning: Some vanilla hand holdings and serious nuzzling.NO NTR.Despite the name, tentacle sex is quite minimal lol.