Darkness of the Sea, Shadow of the Moon

The fulfillment of a dream-like love, that was the beginning of all tragedies. Twin sisters, Ryusui and Ryufu. The same face, the same heart, and two people who fell in love with the same person. However, it was Ryufu who received a love confession from their admired senior, Katsuyuki Toma. That weekend, the two were involved in an accident at an ancient tomb, but when they miraculously survived, Ryusui had an evil...