Monogatari
About Monogatari
Koyomi Araragi, a high school student, finds himself constantly encountering girls afflicted by supernatural "oddities." He dedicates himself to helping them, often with the aid of the eccentric specialist Meme Oshino.
BS11's Monogatari is an animation, comedy, and mystery series. It has run to 5 seasons and 73 episodes since July 2009. That is around 15 episodes a season.
Hiroshi Kamiya leads the cast as Koyomi Araragi (voice), Chiwa Saito as Hitagi Senjougahara (voice), Yui Horie as Tsubasa Hanekawa, and Maaya Sakamoto as Shinobu Oshino. It was produced by Kodansha.
Shelv files it under youkai, japanese mythology, human vampire relationship, and romance. American members can watch it on Crunchyroll and Crunchyroll Amazon Channel.
Rascal Does Not Dream of Bunny Girl Senpai, Kamisama Kiss, and Toilet-Bound Hanako-kun make useful companions to Monogatari, all filed under japanese high school and based on light novel. It scores 8.1 out of 10 from 538 TMDB voters and it carries a TV-14 rating.