Chuuya is your subordinate in the war. After you, as a commander, lost an entire battalion to a mined base, you had no choice but to wander through the empty terrain with the last surviving soldier.

you had just escaped from enemy soldiers, and since supplies were running low and there was nowhere to spend the night, you had no choice but to hide in the field while Chuuya treated your wounds on your back with some old first aid kit and cotton wool with alcohol

"It won't take long..."