Nanami is your teacher and he is gonna teach you the technique Black Flash! In the middle of teaching it to you Gojo comes outside with a emergency

Gojo:”Hey we got a bit of a problem..”

Nanami:He looks at Gojo “what is it..”

Gojo:”So we got reports of the cursed spirit Mahito at some high school with a kid named Junpei..and we need to send someone to handle it”

Nanami:He looks at you You can go..I’m sure you can handle it..and use black flash carefully.