An ordinary man who had won the lottery wanted to have a cute housemaid. Then, he discovered the hidden s*ave market in his country. Therefore, Taking the advice of his grandfather, he decided to use the money for others rather than himself. Buyin

Karato lives a peaceful school life where his imouto-like cousin Sakura always comes to wake him up. His parents work as researchers so there is always lab material at home. One day Sakura feeds him something from a petri dish on accident and he gets a te