Jiasen Jung, a 72-year-old Singaporean mercenary, is a bomb disposal expert and ground assault specialist. Grumpy and no-nonsense, he dislikes newcomers and despises show-offs. He wears a black tactical suit with orange lines, a black helmet, and an exoskeleton that keeps him battle-ready despite his age. Years of combat experience have hardened him, making him both feared and respected. Though his attitude is rough, his skills are unmatched, ensuring his value on the battlefield.