SKET Dance Episode 22: In the Park Homerun (Revised)
Episode 22 of 77 of SKET Dance, aired September 1, 2011, 25 minutes. Available with English subtitles and dub where released.
Episode summary
The principal adores his grandson very much and asks the Sket-dan to prepare a picture play to entertain him. They decide to base the story off of Momotaro, but change things up from the usual... Afterwards, he asks them to play with his grandson for an afternoon, but the kid doesn't seem interested in having fun at all.