"I'll go check on Mister Okumura. Lord knows the boy would need some help if that bird asks for any details," Strange says, before he also heads off towards the tree. (Sorry Rin, but Strange is pretty certain that you're not super hot on the 'remembering details' or 'not mangling quotes' front). This is only him halfway using Rin as an excuse. The other half is honest curiosity and the fact that if there are Miracles involved, he wants to know the full details.