Set after the events of MK2, competing gazes have sickened the world of Gamindustry. With the new CPUs few and far between with their own problems, Nepgear has little she can do. In exchange for a little more purpose in his life, a solemn Coliseum underdog pairs up with the downtrodden goddess, aiming to help put Gamindustry back together.

Oc goes to Hyperdimension Gamindustri to aquire a special item for overlord Mao and ends up falling to the Ultradimension Gamindustri with Neptune. Rated M for future contents.