Allow us to open multiple sealed djinns at once

[Kuro]

You guys are talking about space time, he isn't travelling through time to get there, he exists as one conscious that is split into multiple pieces

Each fragment of himself inside the sealed box is dormant and when freed it reconnects with his conscious and he can reform himself there in person

He can even manifest himself as his own avatar to communicate with you and give you a reward for freeing him


Sort of like Migi from Parasyte if that makes sense