Year of death: December 24, 2018 Cause of death: Killed by Ryomen Sukuna's "Dismantle" (the slash that bisects the world), which cut his body into upper and lower halves.

Year of death: December 24, 2017 Cause of death: During the "Night Parade of a Hundred Demons," he was defeated in a life-or-death struggle with Yuta Okkotsu on the grounds of Jujutsu High. He fled with fatal injuries, having lost his right arm. He was eventually cornered in a back alley and finished off by his former best friend, Satoru Gojo. Subsequent body: Because Gojo did not entrust the disposal of the body to Shoko Ieiri, the body was taken over by the curse user Kenjaku. The subsequent Geto is a "Fake Geto" with a different person inside. The real Geto died in 2017.

Year of death: 2007 (Second year at Jujutsu High) Cause of death: Fatal injuries sustained during a battle with a Grade 1 equivalent cursed spirit (a land deity/tutelary god). Mission details: Originally assigned as a Grade 2 spirit exorcism mission alongside his classmate Kento Nanami. However, they encountered an unexpectedly powerful land deity, a Grade 1 equivalent spirit. As a result of the battle against a spirit far beyond his level, Haibara suffered fatal wounds, losing his lower body. Only Nanami survived, though he was covered in wounds.

Year of death: October 31, 2018 Cause of death: During the Shibuya Incident, he lost his left eye in battle with the Special Grade spirit Dagon. He then suffered fatal burns to the left side of his body in a consecutive battle with Jogo. Pushing past his limits, he unconsciously continued to defeat a massive number of transfigured humans inside Shibuya Station. He was finally touched by the Special Grade spirit Mahito and died due to the "Idle Transfiguration" technique.