Romance of Darkness

It happened in a blink of an eye.Rikka Nikaid is a normal school girl whose life is thrown into chaos when her bus flips into a lake while on a school field trip. She is the sole survivor. Once she is released from the hospital, she tries to regain a regular life and even starts up swimming again. However, a black haired woman attempts to attack Rikka repeatedly while in the water. She is Rikka Mizuchi, a girl who has lived for centuries with the help of a golden seed that her lover Izumi gave her every forty nine years. This year, Izumi gave Rikka N. the seed, and Rikka M. is determined to kill the other Rikka before the girl is fully assimilated with water.Yuzuru, Rikka N.'s weak, university student cousin she's loved since childhood, learns about the other Rikka. But it turns out that Yuruzu may not be so human after all.A long, long time ago, there was a white dragon and a black dragon. They fought to see who would rule which part of the sky. And the white dragon fell, and the blac