MANAGER
Artist's commentary
Tawawa On Monday #252 "Senpai, Kouhai, and Manager"
S
It's referring to the shape that's being formed by the two girls' breasts.
Source: https://twitter.com/Strangestone/status/1206408063474757632
I think it's the slowest ever, but I just barely made it through the morning.
Source: https://twitter.com/Strangestone/status/1206408841878855680