Osamu Kuga, a freelance writer renowned for his distinctive professional approach, navigates parenthood as Hiroto Kuga’s steadfast father. Married to Yuriko Kuga, their relationship blends mutual respect with a lively contrast of temperaments. While deeply dedicated to his demanding career as a novelist, Osamu subtly champions his son’s fervent participation in Gunpla Battle Nexus Online (GBN), valuing Hiroto’s unwavering enthusiasm for the virtual arena.

Frequently portrayed engrossed in literary endeavors, Osamu occupies a quiet yet consistent space in Hiroto’s world. His parental guidance manifests through measured encouragement, harmonizing his creative ambitions with tacit support for his son’s interests. The narrative anchors him firmly within familial bonds, framing his identity through his ties to Hiroto and Yuriko.