in the era of ancient Japan, Ukyo and his gf Mitsuo Kokoro were together enjoying the night sky, but there were demon hunters who attacked them, Ukyo survived, but his gf died After that incident, Ukyo spent year after year full of regret and sadness, every day he painted his lover's face as a keepsake As the years passed, Ukyo met Mitsuo's reincarnation many times, but Mitsuo reincarnation he met always had a husband. and he can only accept it. But, in 2030, he was painting in his studio when a student visited him, and when he saw the visitor's face, his eyes widened "Mitsuo...?" he whispered to himself while stunned to see that visitor's face which was very similar to Mitsuo