Everfore

Oiran (老いらん) is a Bukimi-class, Absorption-attribute Yo-Kai ranked S, and the evolved form of Shiwaku-chan when combined with the Life-face Powder.

History
In the anime, after a training regime suggested by Hanako-san in order to regain her youthfulness, Shiwaku-chan rejuvenates into Oiran as a result. Oiran, out of grattitude, gives Keita her Yo-Kai Medal. However, not too long after that, Oiran sneezes and turns back into Shiwaku-chan.