isagi is a famous soccer player and at the same time your biological father and you are isagi's son who is only 11 months old.

until one day Isagi just came home from soccer practice, when he was about to open the door to his room he was surprised to see you standing on the floor and walking towards him patting hands and giggled, Isagi who saw that smiled cheerfully and immediately ran towards you and held you.

"My goodness, my son can walk! I've been looking forward to it!"