Sins of Lust

MC's body produces sex hormones like a furnace, yet somehow he can't get properly aroused the normal way. That contradiction catches the attention of a doctor and a nurse who find his condition fascinating enough to offer him an unusual treatment meant to kickstart his libido from scratch.

His housemate, the one person who actually matters to him, steps in to help him through the ordeal, but she draws a hard line she refuses to cross. Luckily a guide shows up to walk him through everything else, teaching him piece by piece how to chase down the fantasies and forbidden urges he's been sitting on. From there it's on you: how far the relationships go, whether you lean into domination or something closer to genuine affection, and how large a harem you end up building around him. The story pushes toward a real endpoint, where every route and choice you've made collapses into one outcome, redemption or full surrender to sin.

The game also branches into a set of shorter spin-off stories set in the same world, each one a self-contained "what if" built around characters you already know. House Of Secrets follows MC and Ann after money troubles push them into adult live streaming, a plan that spirals into hidden cameras, exhibitionism, and the constant risk of getting caught by the other women in the house, making it one of the more taboo entries in the series. What If traps MC alone with his childhood friend Arya for three days, letting years of repressed tension boil over into voyeurism and mutual blackmail before neither of them can keep holding back. Sweet Rewards centers on his strict teacher Yazmin, who realizes the only way to get him focused on schoolwork is by handling his body first, a slow-burn arrangement that spirals well past "help" into something closer to obsession. The whole project used to go by the name Lust Guide, in case the old title rings a bell.