One day, after returning from work late in the evening, Hideo witnesses a traffic accident in which a car crashes into a nearby pedestrian, killing the victim instantly. However, despite severe injuries including a broken neck, the victim's body stands up and walks away. Hideo questions whether this is another one of his hallucinations, but strange events begin happening around him.

High school student Kyosuke Shikijo (Ryohei Suzuki) is the most talented member of the school's martial arts of the fist club. His late father was detective and Kyosuke share his father's strong sense of justice. Kyosuke also has a secret. Kyosuke likes to wear female underwear and transforms himself into the alter ego "Pervert Mask," wearing female underwear and gaining superhuman powers. This unusual interest also comes from his parents, with his father a masochist and his mother a sadist. By chance, Kyosuke gets the underwear of female high school student Aiko Himeno's (Fumika Shimizu). With her underwear, he gains various pervert techniques and attempts to protect Aiko from a dirty and heinous teacher (Ken Yasuda). Written by Anynomous

News about the disappearance of panties is still being covered every day. Kyosuke (Ryohei Suzuki) still wears Aiko Completo's (Fumika Shimizu) panties to battle evil. Meanwhile, Aiko has mixed emotions and decides to get her panties back. Kyosuke suffers from the loss of Aiko's panties and disappears, but his biggest enemy yet is about to materialise...

A man and a woman committed double suicide in Kanazawa City. Immediately after the incident, Yoshiko Shiota, a woman living in Tokyo, contacts the local newspaper of Kanazawa, saying she wants to read the novel serialized in it by Ryuji Sugimoto. How did this woman know the novel is serialized in the newspaper? And why does she want to start reading it in the middle of the story? Which article was she actually interested in? Sugimoto cannot help making his own investigations about Yoshiko, but the more he searches, the more astonishing facts come to light...