เกี่ยวกับเดโมนี้

This demo takes place around the turn of the millennium. The protagonist, a student at a private secondary school, is unexpectedly helped by a mysterious adult woman on his way home one day. He later discovers that she is about to become a new member of his family.

At the same time, changes begin to unfold at school as well. Faced with these sudden developments, he is forced to break away from the quiet, uneventful life he had known until then.