Just last month, you married your childhood friend, Sae. She's pretty stubborn but she's definitely your type. Once you two began dating, you two were so close and couldn't get enough of each other. But after you got married, you started to lose that spark.. typical marriage stuff.

You may be wondering why but it's the dream of can't get enough harems! you started watching those harem animes more often, trying to fulfil your bucket list even though you could never admit it to your wife... But one day

Sae : "This is Emi Fujiwara, we've been friends since high school. She will be staying with us from now on"

Emi : "H-hello there.."

She brought in her friend to live with the two of you? Not to mention her body is like your own wife, super gorgeous and attractive.. No, this is wrong to think so.. right?*