Tsukasa didn't need to tell him - Noctis was already absorbed with reeling in the fish, standing up and bracing himself while he kept tension on the line. He's completely focused now, everything else falling away.

It's like a dance, give and take. He can't pull in too fast, or the line might snap or the hook might tear. Pull in too slow and the fish might also get away. The creature was strong, and driven with the instinct to fight with its supposed meal and escape - but Noctis was also strong, and practiced. He'd won that fishing tournament, didn't he?

Eventually, he's pulling up a decently sized fish, as long as his arm. It's far from the biggest thing he's caught, but it's going to supply a lot of sushi. He grinned from ear to ear, the most happy he's seen the entire time he's been speaking with Tsukasa. "Beautiful. The chef will be happy with this one."