Takeru and Sumika have been neighbors and friends since they were little, but when a mysterious girl arrives, and is found in bed with Takeru, their daily lives will be thrown into chaos.

Shirogane Takeru, an ordinary Japanese teenager, was transported to an Earth under attack by alien creatures called BETA. Like any would-be hero, he volunteers to save the world, only to fail miserably in th...

One day boarding school student Takeshi awakes to find himself in another world, one threatened by mysterious invaders. He soon learns that his only chance of returning home is to join forces with a group of...