Jingyi will be going 'home' as he doesn't plan to not make himself try, and also because if things go wrong he's technically expendable (look, not that he admits this). As it will have him in the situation of visiting tethered, aside from trying to reassure people once he makes contact with them, but he won't want to spend time in a situation he also cannot control.

Notably, little will change in his world for him being struck like this, though he will be able to tell them it's not a random curse.

He's here to support friends (or fellow Voidtreckers) by accompanying them to their worlds once he realises that's possible, partly out of being curious, and partly because he's reassured that his assumptions about his world are correct: exactly zero is falling apart other than giving his best friend and best friend's family a case of worryitis.

Also, if anyone wants someone to go dragon in that 5mi radius on their world for whatever reason, Jingyi is That Guy who can, for Shenanigans (or necessities or whatever, if you want a flight up for a dragon's eye view on the area you're confined to on your world).