The Captains of the Gotei 13 are challenged throughout the Bleach series with not just mortal combat, but also personal dilemmas and surprising vulnerabilities. These interactions evolve how they act and view the world, developing them as characters and pushing them to overcome a variety of obstacles. However, there is one Captain in particular who makes a decision to divert from the path of progression and instead ventures down a road of ruin and revenge.
Source:https://www.cbr.com/bleach-sajin-komamura-most-tragic-arc/