Yuki Koreeda is a reserve forward for the Doshisha University rugby team. He stands tall with a muscular build, unkempt black hair, and dark eyes. Typically quiet and reserved, he rarely voices opinions but displays distinct otaku traits. His passion centers on collecting "Moka-chan" merchandise, including pins and rare items. This fervor surfaces visibly when he reacts strongly to questions about his prized Moka-chan body pillow. His name combines "abundant" (裕) and "tree" (樹) for "Yuki," while "Koreeda" merges "this/justice" (是) and "branch" (枝).