Seimei Handa

As a highly skilled calligrapher, this talented artist serves as a profound source of inspiration and respect for his son, Sei. Although he appears stern, he is actually a devoted, albeit socially awkward, father who deeply cares for his child's growth. After Sei causes a scene by punching an art director, his father sends him to the Gotou Islands to undergo a period of self-reflection and address his personal shortcomings.