Takumi was forced to go back to England 2 weeks after their wedding, without knowing Misaki was pregnant. And now, he comes back after 6 years. All he wants is this trip to be over as soon as possible for he was scared that he'd be fighting for Misaki with no chance of winning...But that was before he discovered Tora gets the happiness of being a father to his son.

It's what the title says, it's about the demon Misaki Ayuzawa-future Usui and his perverted outer space alien stalker Takumi Usui's married life! Being married have lots of ups and downs: fun moments, kisses, arguments, misunderstandings, jealousy, and etc. How will these two go through it? Can Usui Takumi stop Tora Igarashi from having feelings for Misaki?