Nekodam

Nekodam is the slash ship between Nekomaru Nidai and Gundam Tanaka from the Danganronpa fandom.

Canon
In Chapter 4 of Danganronpa 2, the two both decide to do something after the starvation motive is introduced and the others are just waiting to die. Both agree to battle each other to death in order to sacrifice their lives to save the others from starvation.

Their friendly rivalry from the second game is referenced in the second episode of Despair Arc, where the two are playing one of Chiaki's video game together. Both continue attacking each other's character in a way that causes their characters to fall off the platform and die.

In episode 9, the two stay behind during their class's search for their homeroom teacher, in order to fight the angry Reserve Course students who were about to attack Class 77-B.