- Voice Actor (CV)
- Yoshitsugu Matsuoka
- Gender
- Male
- Age
- 16
- Birthday
- December 25
- Role
- Protagonist
- Identity
- The world's sole male 'D' wielder, formerly a lieutenant of the elite NIFL unit Niflheim, currently enrolled at Midgard Academy's Brynhildr class
Personality
Unshakeable Composure
Selfless Dedication
Silent Protector
Exceptional Tactical Acumen
Yuu Mononobe stands as the only male in existence capable of harnessing the power of a 'D.' Once a highly trained operative within the covert special forces unit Niflheim, he was reassigned to the all-female Midgard Academy under special orders. Concealing his military background to blend into student life, he reunites with his long-separated sister while forging bonds with his classmates. Yet when colossal dragons threaten their world, Yuu steps forward without hesitation, channeling an ironclad resolve to shield everyone he holds dear.