( His hand flattens, presses down against Itadori's shoulder as he tries contacting Nanami himself. When it doesn't work he lets out a small breath, but bolsters himself quite quickly. )

All right, don't panic. Both nanami and your brother are strong. And we don't know if anything untoward has happened yet. Where have you checked? Did you know where either of them were staying?

( There was a woman making eyes at Nanami, wasn't there? Maybe he went with her. But no, that doesn't feel right either. )