Nanase Izumi is unbelievably beautiful, yet so carefree and oblivious that it almost cancels out her looks. Ever since an unfortunate (and drunken) Christmas Eve meeting, a certain high school boy has found her showing up at his place unannounced. If drinking like a fish breathes water wasn’t enough, she has zero sense of boundaries and is always teasing her younger neighbor-slash-unwilling host. Careless meets clueless in this rom-com about a drop-dead gorgeous but hopelessly messy home-drinker and the high school boy who keeps getting dragged into her antics. *Source: Manga UP! Global*

Based on the eroge by the same name, this manga tells the story of a beautiful girl moving in next door to our protagonist Takamaru. Little does he know that she's a kunoichi who must defeat evil by powering up by having sexual intercourse with him.

In the near future, an advanced AR technology known as Mixed Reality System has become widespread and introduced to the world a new sport. Circlet Bout is particularly popular with high school girls with successful players achieving nationwide fame. Sasaki Yuuka has just transferred to Saint Union Academy, but can she revive its ailing Circlet Bout team?