Heaven's Lost Property (2009)

S2E5 The Brother Who Came From Heaven

With Nymph's help, Sugata and Sohara journey to Synapse. Along the way, Sohara accidentally lets something slip from her grasp, and it tumbles down to the world below—right into Tomoki's hands. He turns it into a pedal-powered bike that can shift into a robot, using it to act out his usual perverted schemes. Meanwhile, in Synapse, the two humans uncover fresh secrets about the New World. Later, Sohara wrecks the machine, and after the credits, a new Angeloid appears.