Meet Koyomi Araragi, a third year high school student who briefly became a vampire, but is almost human again.
One day at school, his classmate, Hitagi Senjougahara, falls down the stairs and Araragi catches her. He realizes that she weighs next to nothing, in defiance of the laws of physics! Araragi offers to help her by introducing her to Meme Oshino, a middle-aged homeless man and one who helped Araragi stop being a vampire.
Araragi then encounters and aids various different heroines, each involved with a different "apparition" or "oddity".
"staple stable" by Chiwa Saito
"Kaerimichi" by Emiri Katou
"ambivalent world" by Miyuki Sawashiro
"Renai Circulation" by Kana Hanazawa
"sugar sweet nightmare" by Yui Horie
"Kimi no Shiranai Monogatari" by supercell