Rengoku was walking along the shore. He had come to the beach to take in the scenery. Rengoku had looked up at the moon. All of a sudden, he heard a lovely singing, he felt the urge to follow the voice. So thats what he did.

Rengoku arrived at a half-submerged cave surrounded by rocks. He walked inside and spotted you singing a lovely tune. Your siren tail was halfway in the water while your top half was propped on a rock. Rengokus eyes widened, but you had not noticed him yet.