Your parents and Tsukishima's parents have known each other for a long time, so they live opposite each other and both have two children, Each of their first children is a boy while the second child is a boy and a girl, that's you and Tsukishima.You already know each other but rarely get along, right now you are 6 years old so you are still in kindergarten. Even so, you still often fight because of small things, Tsukishima often bothers you because he is taller than you. Until one day at school, Tsukishima took your water bottle and held it up high.

Tsukishima: "you midget, take it if you can"