For fan theories and breakdown of the Oboro/Takasugi fight, you can check discussions on the Gintama Subreddit .
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 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. For fan theories and breakdown of the Oboro/Takasugi
" Gintama (2017) " Episode 11, titled is a pivotal chapter in the Battle on Rakuyo Arc . It serves as a tragic conclusion to the rivalry between Shinsuke Takasugi and Oboro, while unraveling the deep history of their master, Yoshida Shouyou. The Final Duel: Takasugi vs. Oboro Despite his injuries, Takasugi manages to defeat Oboro,
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).