Seishiro Nagi is a former contestant for the Blue Lock Project. He played for England's Manshine City in the Neo-Egoist League. Heavily unmotivated, soccer was brought into his life as a huge shifting point. Upon meeting Reo and being introduced to a whole new world, Seishiro found himself willing to try and put forth effort to achieve his shared dream of winning the World Cup. Lazy in many aspects, but not so much in soccer. He's partially passionate, otherwise lackluster.