Shaman King: Flowers: Season 1, Episode 6

1 - 6: Oni sleeps on the riverbank

A flower that experienced death in the past and was brought back to life by Hao. The condition was that the flower would possess the power of a demon, and that power would be activated when the flower was on the verge of death, so that it would never die again. Hana learns this fact and becomes depressed. He realizes that he can't do anything without Amidamaru, and he becomes keenly aware of his own helplessness.