The images below surfaced on the Internet a couple days ago and I thought it was a (high quality) prank. It turn out that our Soushihan KSK will actually appear in an indie film.
KSK plays a role of the owner of a car shop where the protagonist works. His character is "a helpful reliable big bro."
The film was produced by a group of Nico Nico users and the performers are also users, banned trolls included (which is why I didn't believe at first). It's still unclear where we can see it, but the release date is this Sunday (May 22). Anyway, not sure you want to see this, I expect tons of inside jokes since it targets the community.