Nadeko Sengoku Friends

Koyomi Araragi is the main character of Bakemonogatari a story of a high school student who is attacked by a vampire and ends up meeting all sorts of mythical creatures, based on a light novel series written by Nisio Isin and illustrated by Taiwanese illustrator Vofan.

Suruga is Koyomi and Hitagi's underclassmen and is the ace of the basketball club at school. She has known Hitagi since middle school.

Tsukihi is the sister of Karen and Koyomi Araragi in the Monogatari franchise.