A lake monster, a competition to solve its mystery, and two schoolmates, where not even the supernatural is always black or white.

“It’s been 14 years since your passing. So much has happened since then. I wish I could see you all grown up now. Sometimes I wonder what we could’ve done to prevent it. Where did it all go wrong?”

Suzuka is you average cynical, pessimist teenager, after a sequence of casualities she falls in love with her older sister’s childhoodfriend Enjou, an inmature and stupid middleaged men, who is also her neighbor.

A young girl named Eleanor is a true Halloween lover but when her classmates start bullying her telling her that she's too old for this "childish dress up holiday" Eleanor starts losing interest in it. Is there anything that could happen that could make her fall in love with the spookiest holiday...