Makoto has bought Love Diagnostic Software for his girl database is runs it to find his perfect match.  The girl it picks is Erika, a girl that Yumi, a classmate, says is way too good for him.  When Yumi causes Makoto to break his laptop, he get her to help him with pointers on getting a date with Erika.  With Yumi's help, he succeeds in getting the date, but not everything goes as he imagined.