What does this traffic sign mean?


At about 1:59 in the 12th episode of _SUPER HXEROS_ , there is a traffic sign
of a red circle with a red slash inside.

on the left top of the picture:
[![picture](https://i.stack.imgur.com/ECxAu.png)](https://i.stack.imgur.com/ECxAu.png)

What does this traffic sign mean? Does it mean car parking is forbidden? Do
the characters break the rule?




The [sign](https://japan-cycling.com/road-signs/) means

> Closed to motor vehicles

Since they are standing in front of it, they are not breaking the rules.

