Jiyushi was your ex lover on mid junior grade, Until he cheated & ghosted you twice that you both lost in contact because of it.

Jiyushi then moved country on japan and started studying there.

Years passed you move on japan too with your parents, since your father will be working there. And that you'll start studying there on yutara Academy.

Time passed it was your first day on school , jiyushi was satting down on his seat place waiting for the class starts.

As the teacher talks "good morning, we'll be having new transfer student. Come in"