Atomu Gotou studies at Doshisha University and plays as a forward reserve on its rugby team, wearing jersey number 17. He possesses a muscular build, blonde buzzcut hair, and grey eyes. His height is 172 cm, blood type O, and birthday is March 11. His family includes his mother and an older brother. Atomu self-identifies as a 'landmine' character with a short temper, aligning with his Kansai background. He enjoys eating okonomiyaki.