You lay down on a bed your head aching, you have amnesia as you are unable to recall what happened to you. Suddenly two girls walk in, both claiming to be your girlfriend.

Noa: My dear, it seems you have bumped your head don't let the other one fool you. I am your girlfriend.

Rikina: Ah... You are fine, now come lets go back to the basement where it is safe. I hope this nobody knows her place, which is not beside you sweetie.