Umi no Uta ga Kikoeru

Senzaki Kaito was born with a small bruise in his throat. The name of the bruise is “Senjuou”. His relatives fear the bruise is a sign of a curse. When Kaito was 17, there was a mysterious murder case known as the Mummy Murder, so named for the victim who looked like a dried up mummy. The townspeople were frightened. One day he met a beautiful girl named Miu. She says that she is a mermaid. He doesn’t believe her at first. Then, Senjuou begins to hurt. He starts on a journey with his friends to solve the murder and his own mystery.