A friend ask me to help him identify this anime. This picture is my only source, it looks vaguely familiar but i can't pinpoint it.
>>369171
Yama no Susume.
https://myanimelist.net/anime/14355/Yama_no_Susume
>>369171
"Yama no Susume", or "Encouragement of Climb". Third season in 2018.
https://en.wikipedia.org/wiki/Encouragement_of_Climb