Need Help Identifying Source of Image

[ethanldf]

Does anyone know the source of this image?
It extremely familiar but i can't place it.
If i recall it may have been a school life comedy manga (or i could be totally wrong)

https://i.imgur.com/CT5pW42.png

 

[bigtiddyoneesan]

Might be the kid from this manga.

https://mangadex.org/title/25264/danshi-koukousei-wo-yashinaitai-onee-san-no-hanashi