Gojo must have thought it may turn out differently if they’re on the same side this time. The only difference is that satoru cares too much and that was his lethal mistake 🥲he had the heart that makes him human and weak
Think about what gojo must have felt seeing megumi taken when he wasn’t looking. They had 9 years together but so much longer ahead of them, if fate hadn’t played with them
That means gojo chose to keep the only weapon capable of killing him by his side for it to be used against him. Megumi was always going to be gojo’s end. Limitless and ten shadows will always kill each other no matter if they’re on the same or opposite side