Shuichi

Shuichi is a character who only appeared in the one-shot Thus Spoke Rohan Kishibe - Mutsukabezaka

Thus Spoke Rohan Kishibe - Mutsukabezaka
Shuichi's family made him marry Osato Naoko after her graduation. He seemed to care about her, but she loved Kamafusa Gunpei. Their life together was happy, even though they didn't burn with passion for each other, they were blessed with two kids (actually Gunpei's children, but Shuichi didn't know this).