Tadakatsu Hatagami

旗上忠勝, Boy #18
Boy 18 Tadakatsu Hatagami is a tall athletic boy who is friends with Yuichiro. The two hide together. In the novel Tadakatsu played on the baseball team. Shuya was Tadakatsus friend. The two stopped seeing each other after Shuya quit baseball and began playing the guitar which was highly discouraged in the Greater Republic of East Asia. Tadakatsus mother had an uptight attitude against guitar playing. Source: Wikipedia