Mum's wish to be a chairperson brings everyone in trouble (PTA elections) (会長フィーバーには困ったでござるの巻) is episode 640 of the 1981 Ninja Hattori-kun anime.When Mrs Mitsuba is convinced to be the leading Councillor of the PTA council, Kenichi tries desperately to stop her.
At the waste ground, Kenichi, Yumeko and Kemumaki talk about the Councillor election. Yumeko and Kemumaki suggest that Mrs Mitsuba be the leading Councillor of the PTA council, but Kenichi, worried about being shamed for being a PTA Councillor's son and getting low marks at the same time, is on the opposing team.
Later on, Kemumaki meets Mrs Mitsuba in the street and tells her that she is very pretty for a councillor. Mrs Mitsuba is so flattered that she accidentally pushes him and sends him into a wall.
When she gets home, Mrs Mitsuba announces that she will become the leading Councillor of the PTA. With a toilet-cleaning brush and a ribbon, Mrs Mitsuba tells Kenichi that she is standing for the PTA council. Kenichi assumes that she must be joking, but Mrs Mitsuba says otherwise. Hattori says that Kenichi too should vote for his mum, horrifying him.
Kenichi tells Shinzo and Shishimaru about Mrs Mitsuba trying out for Councillor, and they vow to support his opposition. Shinzo gets told off when he tries to dissuade her, but Shishimaru is thanked for giving her chocolate rolls.
Meanwhile, Kemumaki and Kagechiyo, their bottoms sagging, peer through the window. As they devise their plan, Hattori spies on them. Realising his mistake, he tells a shellshocked Kenichi. Kenichi begs Hattori to do something to make Mrs Mitsuba change her mind. They rush off to the parliament to stop Mrs Mitsuba with Shinzo and Shishimaru. However, while trying to freeze Mrs Mitsuba, Hattori is apprehended by Kemumaki, who follow Mrs Mitsuba. Thankfully, Shinzo rescues him by throwing a frog at him, waking him up. Hattori rushes after Mrs Mitsuba but it's too late, he can't get in... or can he?
Kemumaki and Kagechiyo are outside the parliament and rejoice their plan, while Kenichi, Shinzo and Shishimaru arrive in shock. Mrs Mitsuba then leaves the building and Kemumaki gives her a bouquet of flowers to congratulate her. Hattori then comes out after her, and explains that Mrs Mitsuba is a councillor in another council. Kenichi and the gang celebrate.
Meanwhile, Councillor Mitsuba makes Kemumaki tidy up the stream. Kemumaki is left confused.