Hajiki’s school attendance problem is causing him trouble, but his life only gets more complicated when Hachisuka assigns him to deliver 100 wedding invitations.
Apparently, he's the teacher
who gave the bride piano lessons.
إنه المعلم الذي قدم 
.دروس البيانو للعروس
Er ist der Lehrer,
der der Braut Klavierunterricht gab.