Hiroshi Hashimoto

An expedition in the South Pacific lands on a tropical island where the natives worship the mysterious deity Gappa. An earthquake opens up an underground cavern and a baby reptile is discovered inside. The natives warn the foreigners to leave the hatching alone, but they don't listen and take it back to a zoo in Japan. Soon after, moma and papa Gappa start smashing Tokyo looking for their kidnapped child.

Harue Hashimoto is a popular mystery writer. She always talks about murder tricks to make it look like an accident with her friends Mayumi Tsukasa, a singer, and Miki Kitamura, an editor. Miki has a habit of saying that she wants to kill her boyfriend Kyosuke Takamaki.

There are two bizarre rumors spreading about a girls' high school called “Seiwa Joshi Gakuen.” The first is a “Hanako-san in the Toilet”-like story about a painting that hangs in the principal's office = young twin sisters who escape from the painting at night and promenade around the school. The other is about Ryoko Mizumura, an art teacher who is too beautiful to be true and the object of the students' admiration, but who may actually be two people.