A very ordinary male high school student, Ayakoji Kazuto.

He spends his days immersed in his hobby of online games.

One day, he discovers the true identity of a close friend he had even married in-game.

It was Mizuki Rinka, a cool-type idol from his own class.

With Rinka trying to act like his wife even in reality, Kazuto finds himself leading a dizzying, eventful daily life.