Buchio grapples with a concern that all yokai like him eventually face: the fact that his lifespan is much longer than that of humans. His new friend Wagen has been dealing with the same concern in his life with his aging partner, Kazuhiko.
They didn't meet again 
until they were both nineteen.
لم يلتقيا ببعضهما ثانية
.حتّى صار كلاهما في التّاسعة عشر
Sie trafen sich erst wieder,
als beide neunzehn waren.
No volvieron a verse
hasta cumplir los diecinueve.
No volvieron a verse
hasta cumplir los diecinueve.
Puis, ils ne se sont pas revus
jusqu’à leurs 19 ans.
Si rividero solo a diciannove anni.
Eles só se reencontraram de novo
quando já tinham dezenove anos.
Они встретились вновь, только когда им
исполнилось девятнадцать лет.