Sumomo was having a bento box with Ibuki who she has become friends with. Though she was concerned about becoming friends with everyone. Haruhi and her friends think of different ways to help Sumomo. Everyone gathered their bento boxes and went to the arcade but things didn't go very well. Therefore, everyone went along with Koyuki's suggestion of going bowling but...
There isn't really a main character for this series. The closest this thing comes to a main char. is the boy everybody assumes has magic. This show is primarily a cast series. Everybody gets some airtime.