Gintama (2017) Episode 11 Link

It is confirmed that Shouyou was merely one of many personalities created by Utsuro, an immortal being who has lived for centuries by consuming Altana (energy from the Earth).

For fan theories and breakdown of the Oboro/Takasugi fight, you can check discussions on the Gintama Subreddit . Gintama (2017) Episode 11

The episode focuses on the brutal fight between Takasugi and Oboro. Despite his injuries, Takasugi manages to defeat Oboro, who was already weakened because his body could no longer handle the regenerative properties of Utsuro's blood. It is confirmed that Shouyou was merely one

Every time Utsuro was killed or tortured throughout history, he would eventually regenerate and form a new, often darker, personality to cope with the endless cycle of death and rebirth. Where to Watch or Read More Takasugi manages to defeat Oboro