He sprinted off-aand barreled RIGHT into Kirishima.
K: "Oof-S-SUN!"
"K-K-Kirishima-I-I-I-I'm so sorry I-I-I didn't m-mean to d-disappear like that-"
Immediate bear hug.
K: "GUYS-GUYS HE'S OK! I FOUND HIM!"
Anddd well, Izuku came barreling down a hill, of course skidding slightly as he ran up to the three of-okay it was just a giant bear hug. Like seriously-Izuku hugged Tamaki tightly, while Nejiro, well-everyone.
I:"S-Sun! W-Where did you go-w-why we're you gone for so long, don't ever scare us like that a-again, w-we thought you we're hurt..-!!"
The next day, the three of them were discussing the events of yesterday
D: "S-Something has to have happened to him yesterday-Sun would never just disappear like that-....would-would he?"
K: "No, he wouldn't-he's lived here for 17 years and he's never broken a single rule I mean-he still cries over accidentally breaking stuff! Accidentally!!"