Sojiro Kusaka

Once a close companion and fierce competitor of Toshiro Hitsugaya during their academy days, this ambitious warrior remains driven by a deep-seated grudge. Fueled by the delusion that he is the true owner of Hyorinmaru, he relentlessly pursues his former peer. However, despite his intense determination throughout the Diamond Dust Rebellion, he faces repeated, crushing defeats at the hands of a weakened Hitsugaya.