The connecting record
shownJujutsu Kaisen
Mahito killed Kento Nanami in Jujutsu Kaisen.
What each of them is ranked on
The killer · Mahito · rank 10
Took Junpei Yoshino apart in front of Yuji and left him in a shape nobody undid. Killed Nanami Kento in a corridor of Shibuya Station with Yuji a few metres away and nothing left to do about it. Ten chapters on he put the domain up around Yuji and Aoi Todo — not the first time he had opened it — and the technique took hold of Todo without a hand ever landing on him.
statedJujutsu Kaisen · ch. 22
Mahito states that Idle Transfiguration reshapes the soul and the body follows it.
shownJujutsu Kaisen · ch. 27
Transfigures Junpei Yoshino's body in front of Yuji.
shownJujutsu Kaisen · ch. 27
Junpei Yoshino dies of the transfiguration.
All 10 citations
shownJujutsu Kaisen · ch. 120
Kills Nanami Kento in front of Yuji.
shownJujutsu Kaisen · ch. 29–30
Opens Self-Embodiment of Perfection against Kento Nanami, well before Shibuya.
shownJujutsu Kaisen · ch. 81–82
Opens Self-Embodiment of Perfection again against Kokichi Muta in Mode Absolute.
shownJujutsu Kaisen · ch. 130, p. 6-7
Opens Self-Embodiment of Perfection in Shibuya against Yuji Itadori and Aoi Todo, and uses Idle Transfiguration on Todo without touching him.
statedJujutsu Kaisen · ch. 30
Inside the domain his technique is said to reach a soul without his hand landing on it.
shownJujutsu Kaisen · ch. 132
Yuji Itadori beats him down to a fragment that cannot hold its shape.
shownJujutsu Kaisen · ch. 133
Kenjaku absorbs what is left of Mahito before the fight ends.
The victim · Kento Nanami · rank 17
Walked out of the profession into a salaried job and came back to it still keeping the hours. The vow is with himself: past the end of the working day his output goes up whether or not anyone is told. Telling them is a second contract, and he keeps that one too. Was finished off inside Shibuya Station once a shift's worth of transfigured bodies had already emptied him out.
statedJujutsu Kaisen · ch. 30
Nanami left jujutsu sorcery for a salaried job before returning to it.
statedJujutsu Kaisen · ch. 23
The Ratio Technique divides a target seven to three and opens a weak point at the division.
statedJujutsu Kaisen · ch. 23
Overtime is a binding vow Nanami makes with himself, raising his cursed energy once his self-imposed working hours are past.
All 6 citations
statedJujutsu Kaisen · ch. 20
Disclosing his technique to an opponent is a separate binding vow of Nanami's.
shownJujutsu Kaisen · ch. 120
Fights through a crowd of transfigured humans in Shibuya.
shownJujutsu Kaisen · ch. 120
Is killed by Mahito.
What this does not settle
One death in one work. It is the only place the record puts these two in the same room, and it is evidence about that meeting and nothing wider — not a general matchup, not a rematch, and not a ranking of its own.
The ladder above it is argued from everything either of them has been shown doing; this page is argued from one citation.
Where the two disagree, the disagreement is the point, and it stays visible rather than being resolved by whichever of them happens to be on this page.