Seita is a kid who makes his living through pickpocketing. One day Seita picks Gintoki’s wallet only to find it pretty much empty, and discovers that his own wallet was picked back in return. In the end Seita treats Gintoki to some parfait after getting caught red-handed. Brought into Snack Otose for questioning, Seita shocks everyone by revealing he needed the money to see a certain “遊女/Yujo (courtesans/ prostitute).”
So it is him. I had ignored him because I thought it wasn't worth my time.
Así que es él... Lo había ignorado 
porque pensé que no valía la pena.
Então é ele. Eu o ignorei porque 
achei que não valia o tempo perdido.