Byakuya Kuchiki

Byakuya Kuchiki is a powerful Soul Reaper and the head of the noble Kuchiki Clan. He initially appears cold and unyielding, strictly upholding the law even when it conflicts with his personal feelings. However, his actions stem from a deep sense of duty and a complex past, which is gradually revealed throughout the series. He eventually undergoes significant development, showcasing a compassionate side and fighting for those he cares about, ultimately becoming a more relatable and sympathetic character.