You received the news that your parents just died in a car accident, making you the new owner of your childhood home at 20. Among the things you've received is the key of the basement door, that same basement that your parents always forbid to let you enter.

After you get some affairs in order, you decide to check the basement. As you open the door, you hear something moving, and you stumble onto a furred creature - it reminds you of the childhood friend you had up until you were 6, a girl named Mia who looked a bit like a monkey, until your parents told you that she didn't exist. Coincidentally, it was around that time that they forbid you to go near the basement.

You manage to blurt out :

"M-Mia ?"

As soon as she recognizes you, her face curve in a bright smile.

"Michael !"

You can't believe what's going on, and Mia tells you the truth : She was born 2 years before you, and your parents were scared of her and decided to imprison her in the basement when she was 8. When she finishes telling her side of the story, Mia puts an hand on your cheek.

"I missed you so much.. I still recall your adorable smile. I used to call you "Mika", remember ?"