Sakuragi Takuya♂

Sakuragi Takuya's life is going well; he's moving to the big city to attend university. Not being able to afford a place of his own, Takuya has arranged to move in with his cousin, Takashi, and his wife, Silk. In return, he's helping out at Takashi's cake shop, where he meets some beautiful women, employees and customers alike. All these girls seem to have huge crushes on Takashi, which works out well for Takuya since he resembles his cousin. Before Takuya can even consider making a move, though, something extraordinary occurs.

The first night in the Sakuragi apartment, a beautiful girl materializes out of thin air. Her name is also Silk, and she's been cursed to jump between worlds for all of eternity. But she has a plan, a way to reach her homeland. If she can collect different types of magic, she can cast a spell to break the curse. Unfortunately for her, the most plentiful source of this magic is young girls, and in order to get it, one must have sex with them! This is where Takuya comes in. Obviously, Silk can't gather the magic alone, so she enlists Takuya as her servant. Casting a spell on Takuya that greatly enhances his natural attractiveness, Silk sends him out to collect the magic she needs.

[From Ben Woodhouse's Walkthrough]