Filler Concepts

A anniversary of the day on which a person was born (or the celebration of it).

An anime episode that centers around clips from other episodes of the series. Usually used as filler or as a way of recapping events of a long running series for new viewers. This is very common in many series.

Furido's Four Men was a group that appeared on Naruto Shippuden. They are the main antagonists on the non-canon filler arc.

A concept seen in Magical Girl and Tokatsu series where a hero or heroine faces a different monster sent after them each day.