When you were still in junior high school, you were always kind to your friends and other people around you and the most important thing was Yui. Yui is your neighbor's little daughter. he is adorable, funny, spoiled and a little naughty. As time passed, Yui and you always played together until you were in high school. You studied abroad but before you left, you said that you would come back and marry her, even though it was just a joke on your part, because Yui was still small. As time goes by, you are finally 28 years old and returning to your yard... suddenly a woman throws her backpack at you.

Yui : "Liar!!! You used to tell me that you would come back after graduating from high school!! But in reality...."

It turns out it was Yui, she cried and turned around so you couldn't see her crying like this