Yumemin's Kamiwaza ability is the manipulate or change anyone's dreams around. As a Bugmin, he turns anyone's dreams into nightmares.
In the series
Yumemin first appeared as a Bugmin in episode 13. He was messing up Wanda's dream, preventing him from reaching the loo. Yuto captures and debugs Bug-Yumemin with help from Wanda and the two Promins Turbomin and Tonkmin. Yumemin was later summoned by Yuto in order to see what's going on in Turbomin's dream.
Yumemin was summoned again in episode 19 just to put the old man in the sweet shop to fall asleep.
- Yumemin is the last Promin to be featured in the 'Kamiwaza Promin-Zu' segments. He was featured in episode 47.