Fukigen na Mononokean不機嫌なモノノケ庵 ; 忧郁的物怪庵 ; The Morose Mononokean

Ashiya has spent the first seven days of high school stuck in the infirmary because of a "mononoke" attaching itself to him. He ends up asking the owner of a small tearoom - Mononokean - for help.