Fukigen na Mononokean
Ashiya has spent the first seven days of high school stuck in the infirmary because of a youkai attaching itself to him. He ends up asking the owner of a small tea room called the "Mononokean" for help. This is a tale involving the very morose owner of Mononokean guiding the youkai that happened to wander into this world go to the next world.
(Source: Crunchyroll)
Episode 1 - The Beginning
Episode 2 - The Ant
Episode 3 - Zenko
Episode 4 - The Underworld
Episode 5 - The Legislative Lake
Episode 6 - The Ring
Episode 7 - The Encounter
Episode 8 - The Wait
Episode 9 - The Marked Difference
Episode 10 - The Fool
Episode 11 - The Purple Sun
Episode 12 - The Separation
Episode 13 - The End