The Cockroach Dopant has taken Luna, Trigger, Heat, and Metal Memories from W.
Dango made a statement of hating Chizuru on The Dark Pest Exterminator page, but he didn't think the request comes true that the Cockroach Dopant would take actions to eliminate Chizuru. So, Dango was the one who filed a request to stop the Dopant.
Chizuru left Dango and joined swimming class because swimming can help her to improve her dance balance. Philip searches ways to put both together.
Ikari, Cockroach Dopant, tries to use W's GaiaMemories. The Memories don't work on him because they're specifically designed to be used on a Memory Driver.
Ikari is a manga writer and artist. Shoutarou uses a copy of Ikari's recent published manga for clues to find out Ikari's hideout.
Ikari's recent published manga can be read in the: TV Asahi site. (note: the manga is now unreadable, only the cover exists on the website)
W and Dango use street dance together to fight the Cockroach Dopant.
In the end, Philip loses interest in street dance and has a new subject instead.
