Ryuuji Morisaki is a battle-hardened soldier whose stoic, aloof demeanor reflects the brutal toll of wartime experience. His reserved nature aligns with the "kuudere" archetype, presenting a detached, emotionless facade. Beneath this composed exterior, he bears the weight of profound trauma as a World War I veteran, haunted by his wife’s death and silently grappling with PTSD that shadows his interactions. Though he initiates dialogue, his conversations fracture into abrupt topic shifts—an instinctive evasion of memories threatening to surface. Despite the anguish simmering beneath, he meticulously conceals his turmoil, clinging to the semblance of stability through rigid self-control.