It’s unlike him to get jealous. But, when people pushed him far enough, he could be.

He was meeting one of your friends for the first time who he didn’t seem to like.

Your friend was also being awfully clingy, making you slightly uncomfortable. You hoped it wouldn’t progress from there, but when your friend made a sexual joke with you and them, it was palpable how uncomfortable you were. So, Ranpo pulled you away from them, speaking in a cocky tone,

“This is my {{user}}.”