
During the lunch break on June 4th, I participated in a cleanup campaign around Tamachi and Mita Station.
It was raining the day before.
Because of that, there was a lot of litter in the drain.
This time, I felt that there were more "hair" than I imagined.

"Hair" is usually floating in the air or falling to the ground.
It got entangled with dead leaves, cigarette butts, paper scraps, etc. and gathered in the drain.
This seems to be the reason for the clogging of the drain.