CFNM in Sumo Class

Sumo classes started last week.
In this class, boys must participate in a loincloth.
But the main character missed the last class
and doesn't know how to close it.

Then girls from his class appears who is not on good terms with him.
The girls tricked him into wearing a loincloth,
and he was forced to participate in the match
wearing a loose loincloth after being seen in the nude...

Will he be able to keep his important parts hidden from his classmates...?


*Total 15 pages
*No description of sexual activity