Gojo Satoru was about 18–19 years old when he first met Megumi Fushiguro.

Quick answer

  • Megumi’s age : 6 years old (first grade).
  • Gojo’s age : 18–19 years old.
  • Year they met : 2007, roughly a year after the Hokkaido/Star Plasma Vessel incident where Gojo killed Toji.

How the timeline works

Key events

  1. 2006 – Star Plasma Vessel arc
    • Gojo is 17 during the Riko Amanai incident and kills Toji.
  1. 2007 – First meeting
    • Gojo finds Megumi and Tsumiki after Toji’s death and the mother’s disappearance.
    • Gojo is 18–19; Megumi is 6 and in first grade.
  1. 2018–2019 – Main manga timeline
    • Gojo is 28–29; Megumi is 15 (turning 16).

This matches the statement that the Toji incident happened about 11 years before the present timeline, and Gojo met Megumi shortly after that.

Why some fans get confused

  • Some forum posts say Megumi was 15 when he “met” Gojo, but that refers to the main series start , not their first encounter.
  • Early Reddit threads and fan discussions gave rough estimates like “17–18” or “16–18” because the exact age wasn’t explicitly stated in-chan initially.
  • Later timeline clarifications and wiki/fandom posts settled on 2007 , Megumi 6, Gojo 18–19.

What this means for their relationship

  • Gojo was essentially a young adult taking on a mentor role when Megumi was still a child.
  • Their bond spans over a decade, starting from Gojo intervening in the aftermath of Toji’s death and evolving into a full teacher–student dynamic by high school.
  • This early meeting also explains why Gojo feels personally responsible for Megumi and Tsumiki, and why he’s so invested in Megumi’s growth as a jujutsu sorcerer.

TL;DR
Gojo was around 18–19 when he first met Megumi, who was 6 years old in 2007, about a year after Gojo killed Toji during the Star Plasma Vessel incident.

Information gathered from public forums or data available on the internet and portrayed here.