My Girlfriend is an S-Class Adventurer - Chapter 2 Home Sweet Home

[Harem Heaven High School (HHHS)]As the name suggests, it is a dating simulator that gained popularity due to the beautiful heroines with huge breasts and, more importantly, the importance of the player's choices, which influence the endings.Zayden Valtrex, the son of a billionaire philanthropist, was a feared delinquent at Eiko Academy. Standing at 1.95 m tall, with blond hair, full of piercings and earrings, he even scared the teachers.He was none other than the great villain of HHHS, who stole the heroines from the protagonist Subaru Kisaragi.But one day, that very same villain suddenly shows up at school with a completely new appearance. He had removed all his piercings and earrings, changed his hairstyle to be slicked back, and wore a charismatic smile, no longer looking at others with that usual cold stare.Since then, more and more heroines began approaching him of their own will.What no one knows is that Zayden carries a secret memory: he is not only the villain of the game but also someone who once lived in another world... and knows every detail of HHHS. Moreover, he possesses a mysterious system: by spending money on a girl whose affection level is above 50, the return can multiply from 1 to 100 times — and it is not limited to money alone.

Read at least six chapters, then prepare to crave the rest.The main character will show up in Chapter Five, though I don't recommend skipping the first four chapters.-----The world was celebrating. The Demon King was dead, along with his Darkness Generals.Humans led the other races to war for subjugation. They killed all, and none were spared. However, thousands of years before this happened, a piece of history was altered by time itself. In fact, the Demon King didn't have four generals but only one, which he sealed and sent into eternal slumber. Just as he started to close his eyes, the chains locked away for eternity shattered into pieces.

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates