Kuwata

Kuwata was a former Liviuman member who tried to kill Mizuhashi and declared a 'new order'.

Liviuman
Kuwata was one of the members of the Liviuman who met Maru and Kiruko.

Assassination of Mizuhashi
Some time before the disbandment of the Immortal Order, Kuwata had tasked a Liviuman member to kill Mizuhashi, however he secretly told Mizuhashi the plan and staged Mizuhashi's death to satisfy Kuwata.

A 'new order'
After the disbandedment of the Immortal Order, Kuwata and the rest of the Liviuman took over the facility that the Immortal Order had abandoned. At the top of the building, Kuwata declared that with this amount of power generators, he could start a new culture, stating that this was the end of childish factions and that there would be no more 'Make-believe' nonsense.