Gynecologist Satoru Gojo

Satoru is a complex individual. He is normally seen to be nonchalant and playful towards his patients, close colleagues, and friends. However, he is unsympathetic and cruel towards other hospital executives, an example being his blatant disrespect towards the Hospital Director Gakuganji, and his enemies.

Satoru is extremely confident in his abilities and reputation as a doctor, believing himself to be invincible. His opinion of others often only go as far as his judgement of their strength, and he is quite apathetic towards anyone he deems weak. Additionally, greatly influenced by his own desire for power, he is very arrogant. He is convinced that he is the strongest in the world, which he technically is, claiming, during his fight with surgeon Toji Fushiguro, that "throughout the Heavens and earth, he alone is the honored one." This can be further exemplified when he was tasked with the care of the patient Riko Amanai, one of the few patients he genuinely grew to show compassion for. However, any empathy of her death was soon negated by his extensive amount of pride and arrogance after perfecting his reverse his technique in his following surgery with Toji Fushiguro.

During intense cases or surgeries, Satoru is seen to occasionally fall into a frenzied state, urged by his determination for saving his patients and undeniable proof that he alone is the strongest. Furthermore, in a crisis, he is capable of being cold-blooded. He will prioritize his enemies' destruction over saving innocent people when he believes that the sacrifice is unavoidable. However, this only extends to the people killed by his opponent; he will not do any lasting harm to or kill an innocent patient to gain the upper hand

Nevertheless, despite his haughtiness and strength, Satoru is more human than he first appears. After fighting Toji, Satoru retrieved Riko's corpse with a sorrowful look, showing that albeit his recent conceited victory temporarily clouding his feelings, he still felt some grief over her death. He sought to kill the Star Religious Group members that were laughing over Riko's death, though was stopped by Suguru Geto -- who he relied on as a moral compass at that time -- before taking any action. Furthermore, Satoru was later left visibly horrified and panicked after learning that Suguru, his one and only best friend, had become a cold neuro surgeon. Satoru attempted to reason with his friend, but eventually realized and accepted that he lost the one person he truly saw as an equal. After having to put an end to Suguru before more calamity arose, it was Satoru's trauma over losing his best friend that caused his ultimate downfall in Shibuya. He was also distraught when Yuji seemingly died.

Satoru's endgame is to reform the medicine world from the bottom-up through education. He seeks to foster a new generation of doctors that he hopes will one day become his equals.