"Senku... we can call him." Since yeah, he didn't come with Red, but there was still that option. Which reminds Tidus- "I asked another guy if I could call him too. Quatre?"

They can't see the red sky from here, but it was swapped for the stuffy heat and a darkness from the canopies. And vines everywhere. Ugh. Tidus pushes some away.

"Who else... --Oh, Seto. He's a smart know-it-all."

Said as a positive, despite the choice of words.