Where to watch online anime? Watch Fastening Days 4 online free on Hianimes? Right Here!

A story about the humorous misadventures of Akabane Aya, an arrogant high school girl who's constantly trying to outdo her classmates in everything (especially sex appeal), only to make a fool of herself in the process. Since the story takes place in an all-girls school, expect lots of yuri fanservice innuendos without much seriousness.

Immortality is something many people would wish for. But would it be such a coveted ability if people knew they would be subject to countless attacks because of it? Such is the case for Rin Asougi, an immortal private investigator, because there is no shortage of people who want her dead. Over the centuries, she has met many grisly ends, but each time, she returns to life as if nothing had happened. In 1990, while looking for a lost cat, Rin runs into Kouki Maeno, a man who feels that his memories are wrong. Agreeing to help him, Rin discovers that Kouki is not what he seems, all the while drawing closer to her true enemy. This adversary knows Rin and her kind all too well, and if she dies by his hand, she may stay dead permanently. [Written by MAL Rewrite]

Botan Ichige has just enrolled in St. Asmaria All-Girl's School where angels are said to live. It turns out that angels do indeed live there, and after an accident, an angel named Un offers Botan her halo as a snack. After eating it, Botan discovers it had some bizarre side-effects, causing her to regularly "give birth" to colorful mushrooms. Is this the life of an angel!? (Source: MU)

Unaired ep.13 included on BD/DVD.