Naru and Keitaro get some decent grades and so they both decide to celebrate.  They go out to eat on what may or may not be a date...  A strange girl follows them around.  Later, Mutsumi shows up and talks with Naru about Keitaro.  When she still denies she has feelings for him, Mutsumi ask him out on a date.  When they go out, Naru follows who is also followed once again by the strange girl.  After a fiasco on a lake with boats, the question of why Naru is so upset is asked by the little girl who then wants to get Keitaro together with Mutsumi.  But why?