Onihime VS

Onihime VS (鬼姫VS, Onihime Vāsasu lit. "Demon Princess VS") is a Japanese-Korean manga series written by Dall-Young Lim and illustrated by Soo-Hyun Lee.

Onihime VS debuted in the special "Hard" issue of Kill Time Communication male-oriented manga magazine Comic Valkyrie, and began regular serialization in Comic Valkyrie afterward. The first bound volume was released on September 30, 2008, with a total of three volumes available in Japan as of August 25, 2010.

Plot
Setsuna Kashiwagi's only desire is for his sister to live a happy life. Weak, frail, and constantly bullied, Setsuna believes he is nothing but a burden to his sister and decides to take his own life. As he prepares to jump off a bridge, a mysterious man appears and presents him with an unusual offer. He offers 10 million yen in exchange for Setsuna's life. If he accepts the contract, after one year, Setsuna will end his life in a manner the man chooses. Skeptical at first, Setsuna accepts. The next morning, thinking it was all just a dream, Setsuna awakens to find two beautiful women sitting beside him. They are Kanna and Rena, Oni princesses who have come to protect Setsuna. The catch: one of them will consume his heart in one year.