HK: Forbidden Super Hero

Kyosuke Shikijo is a high school student and the standout member of his school's kenpo club, with a strong sense of justice inherited from his father, a detective who has died. Kyosuke also carries a secret: he has a taste for women's underwear. When his classmate Aiko Himeno, the new manager of his club and the girl he is in love with, is taken hostage during a bank robbery, Kyosuke tries to hide his face so the robbers will not recognize him. He pulls on a pair of women's panties by mistake, and the disguise awakens a hidden power, transforming him into a masked hero with superhuman strength. Using his new abilities, he sets out to protect Aiko, including from a corrupt teacher.

The film is a Japanese action comedy directed by Yuichi Fukuda, who wrote the screenplay with Shun Oguri. It was the first feature Fukuda directed, released in 2013, and he later returned to the character in HK: Hentai Kamen 2 – Abnormal Crisis (2016) before going on to direct the two Gintama films, Wotakoi: Love is Hard for Otaku, Once Upon a Crime, Under Ninja, New Interpretation of the End of Edo Period and Sakamoto Days. Ryohei Suzuki plays Kyosuke and his alter ego, with Yoshiko Sengen as Aiko, Tsuyoshi Muro, Ken Yasuda, Nana Katase and Shunsuke Daitoh in supporting roles.

On IMDb the film holds a rating of 5.8/10 from 2,696 votes, while on TMDB it stands at 6.2/10 from 196 votes, reflecting modest, mixed responses from viewers.