35x33 - Kamen Rider

An injured Hanto shows up at Hapipare. He was attacked by a man with a black Gavv on his stomach, but who could make such a modification...? Shoma deduces that it was Nyelv. The man with the black Gavv now attacks Rakia and transforms into Bitter Gavv Breacookie Form. Shoma rushes to the aid of the struggling Vram, but then Nyelv appears as well. Nyelv reveals that Bitter Gavv is actually Magen, a tycoon in the business world. What is their objective?