Ayumi never be alone.

                A girl name Ayumi wakes up in one morning which she is just relieve from a fever, to go to work.  She sits in front of a dressing table.  She looks at the mirror while putting on makeup.  After a while, the reflection in the mirror begins talk to Ayumi and also Ayumi talks back with that reflection and calls that reflection Ayumee.  Ayumi is in a condition of hallucination.

                Then it appears that Ayumee, Ayumi's illusion, cook breakfast for Ayumi and does something else which is nice for Ayumi.  Then Ayumi starts thinking about the day that she first knows Ayumee.  She can recall that it's the day that her ex-boyfriend left her.  And on  that day, Ayumi, with sorrow fill in heart, creates an illusion name Ayumee.

                After Ayumi come back from work that day, it seems that her fever relapse again.  So when Ayumi arrives home, she goes straight to her bedroom and sleep.  A while later, Ayumi wakes up and walk out from her room drowsily.  She sees Ayumee, who Ayumi thinks all along that Ayumee is mere an illusion of her, and her ex-boyfriend are together. 

                Finally Ayumi realize that Ayumee is not her illusion but her sister.  They are identical twin.  The reason her ex-boyfriend leaves her because he falls in love with Ayumee and that makes Ayumi hates her twin sister and wants her just to be an illusion.