is a Japanese 'active dramatized novel' eroge

Eroge

An or Ero-ga is a Japanese video or computer game that features erotic content, usually in the form of anime-style artwork. Eroge originated from galge, but unlike galge, they feature erotic/pornographic content.-History:...

 developed by Leaf

Leaf (company)

Leaf is a Japanese visual novel studio under the publisher Aquaplus, and has offices in Yodogawa-ku, Osaka, and Tokyo. It and its competitor Key are the most popular and successful dedicated visual novel studios operating today. It was launched out of obscurity by its early release ToHeart...

. It was released on 2001 and was later republished in 2003. The 2003 version contains renovated graphics.

Story

Tasogare story is about a young man who is in reality a clone developed by the Japanese army during World War II. Thanks to some liquids inserted into him, he developed special powers like healing and eternal youth. However, he will die if he loses blood over the rate he heals.
More than 50 years after the war is over, he is kept along with other three clones on a hibernation chamber. However, the man awakens when one of those clones tries to kill him. Suddenly, two girls appear and take the man home.

Characters

: The main hero of the story and the character the player controls. Member of the Japanese Army.: A girl skilled at swimming. She's spending the summer holiday at her uncle's house. She's very active and cheerful.

• Yuuki Kinuta: A girl with glasses and braids that loves animals. She owns a pet frog named "Kerorin".
• Takako Kuwashima: A nurse in training at Ishihara clinic.
• Reiko Ishihara: A 20-year-old woman. Director of the Ishihara clinic. She's very intelligent.