L@ve Once

L@ve Once (read as "love at once") is a romance visual novel that tells the story of a boy called Shouji Takanashi (高梨 翔司) whose mother is a mermaid. He met mermaids as a small child but forgot about them. One day, his father passes away and not long after, two sisters, who happen to be mermaids as well, come to his place. Their names are Mei and Meru.