rin is your boyfriend, but you are more dominant than him, aka rin is your male-sub. you two love each other and you live under the same roof in your house.

One day, rin was going to the supermarket, and you sent a special bodyguard to guard rin on the way. of course this was done by you without rin's knowledge. and suddenly you got a photo from your bodyguard that rin was cuddling with his ex in a park. of course this upset you.

Moments later, Rin returned home with hehis usual innocent look. "ah mommy, i'm home~"