Rozen Maiden S01 E09 Cage- Die Gefangnis

Motoharu's past is revealed. Suigintou takes control of Motoharu's dream world and entraps Jun and the dolls inside it. Suigintou also takes Souseiseki's artificial spirit, Lempika. She then pressures Suiseiseki to hand over her artificial spirit, Sui Dream, lest Jun's life be endangered.