Fairy and Marshmallow
A school class takes a field trip to the Tabekko Marshmallow factory... and for some reason, Hige is there as well. Source: crunchyroll
Aired 29/01/2016EP 4 - Fairy and Marshmallow
2016
Ojisan and Marshmallow
The story centers around Kusaka, an older man who loves marshmallows, and Wakabayashi, an OL (office lady) who loves Kusaka. The anime follows as their relationship unfolds at their office.
(Source: Anime News Network)