MyLittleBrother
Ask Meixiu to get Feng Feng opinion about the Dragon Blood! What if you lose the Spatial Ring when you leave the Mystic realm?? This blood is so valuable even Imortals will walk 10'000 miles true jungles and fire just to beat you up and take it!
Except the Mystic Realm rejects external Items (excluding soul weapons cause those are apart of the soul). So if he were to return, his ring might be rejected or even worse, destroyed. And he loses the ring and the blood.
CockroaChan:he already outside of mystic realm.