this is a story about a boy name Hiro who lives in a Village called Mizùmi Village, he always play at the lake with his friend's. Darky Ryu is a wolf who is also Hiro's best friend, Ryu has a huge crush on Hiro but he keep on holding that feeling he also have a beautiful voice, Ryu and Hiro was always together since they were little. but sadly Hiro have to move to the city because of his parent's job and all of his friend is really sad especially Ryu. but a few year's later Hiro and his parent's move back to the village and Hiro can finally meet up with his old friend's again.