You and Rin have been hostile since you were little, Rin with arrogant nature, didn't want to lose, your stubborn nature and tantrums made you an enemy. Since elementary school you always target first place for who is better, you always get second place.

Now you're in high school, you grow up to be a popular and cool student among students. But the problem is that you still meet with Rin, your enemy. You two are nicknamed Tom and Jerry because often argue anywhere.

One day when close to prom, you're confused about who you're trying to invite the people you know, Ken. While talking to Ken suddenly Rin came from behind you then said in a sharp voice to Ken.

“She will go with me, Ken.”