1+2=Paradise

• Name — 1+2Paradise • Ja Kanji — 1+2パラダイス • Ja Romaji — Ichi tasu Ni wa Paradaisu

• Type — manga • Author — Sumiko Kamimura • Publisher — * Kodansha • Shōbunkan • Magazine — Monthly Shōnen Magazine • First — 1988 • Last — 1990 • Volumes — 5

• Type — ova • Director — Junichi Watanabe • Producer — * Kazumasa Fujiie • Kazuo Satō • Writer — Nobuaki Kishima • Studio — J.C.Staff • First — February 23, 1990 • Last — April 27, 1990 • Runtime — 29 minutes • Episodes — 2

• Portal — yes Ichi tasu Ni wa Paradaisu is a Japanese manga series by Sumiko Kamimura. The story has been adapted into a two-episode original video animation (OVAs) released by Toei Video, a subsidiary of the Toei Company. Because of the sexual content the series was one of the manga placed on "Harmful manga" lists by local and national governmental agencies. The negative publicity resulted in Kodansha discontinuing the series.

The story focuses on Yusuke Yamamoto, the teenage son of two gynaecologists. As a boy, he was almost castrated by his two childhood friends, the twin sisters Yuka and Rika Nakamura, his neighbours, which is why he is afraid of women. Also as a child, he saved the twins from an attacking dog. They grow up with a dream that turns Yusuke's life upside down. At the beginning of the story, they re-appear at the home of Yusuke. His father invites the young women in, to live with them, hoping they will heal his son's gynophobia. The therapeutic benefits of this intended treatment are not entirely clear from the series of, sexually tinted, events that unfold.

The manga was serialized in Monthly Shōnen Magazine, published by Kodansha, from 1988 to 1990 but discontinued after it met opposition due to the depiction of nudity and sexually tinted content. The manga was re-released by Shōbunkan in 1994 to 1995.

• Yuusuke Yamamoto • Kappei Yamaguchi • Nakamura Yuuka • Riyako Nagao The elder twin who keeps her hair down, and is more modest and reserved. • Rika Nakamura • Chieko Honda The younger twin who keeps her hair in a ponytail, she is more playful and is more direct and shamelessly presents herself to Yuusuke in lewd situations. • Yuusuke's Father • Kei Tomiyama He is the owner of a gynaecology clinic.