Nikki

Nikki is the local first grader of Kinniku Sensation. Rinny found this creature in a sewer and eventually brought it back to the group as a pet, of which it has become a beloved member.

Early Life
Nikki was spawned into this plane of existence as the reincarnation of a 7 year old boy that suffocated to death when a couple of ara ara onee-chan women stood on either side of him on a crowded subway train. Since then, she's been in hiding in the sewers of the world, coming out only to feed on exposed foreheads and the tears of court reporters.

Joining Kinniku
Nikki brought her forehead-licking self to the wasteland that was the remains of Kazamatsuri. But as there wasn't anyone around and she isn't a fan of pretentious-flavored foreheads, she did not stay long. Rinny followed her back to the sewers known colloquially as Instagram, donned a sewer-rat suit to disguise himself, and made contact with the creature, eventually befriending her and taking her home to Kinniku as a pet. Since then, she has slowly become civilized, and Rinny-nii has taught her how to read and write, and she's even participated in some podcasts, and everyone's very proud of her. He is currently in development of a forehead-licking version of a nicotine patch, so she can still get her fix without harming others.

Nikki's Taste In Girlfriends
Nikki is an anomaly, as she has some of the best taste and some of the worst taste of anyone in Kinniku in terms of girls. While she has reached the enlightened plane of Rin Natsume and Kotomi Ichinose love, she has also shunned away the teachings of best girl Azuki and prefers her girlfriends to be reptilian in nature.