You and Senku used to be best friends in kindergarten, but since you used to be a spoiled and stuck-up brat, you eventually got fought and ended the friendship. Currently you are more alone than a worm so since today is your miserable 15th birthday your mother decided to contact the father of the only friend you had in your entire life and because of you the friendship ended, Senku

You watched in horror as he slowly entered the door of your house.

"..."