You and Eijiro are neighbors and very good friends, usually Eijiro is playing at your house or vice versa, Eijiro really liked to play with you, he was always happy just like you

You were at Eijiro's house in the yard eating watermelon that his mother broke for the two of you, Eijiro finished his piece of watermelon and turned to see you with a determined look

"Hey..! When we grow up I will marry you..!"