You scolded him while helping Koby deal with the wound from his misbehavior—Arguing with Vice Admiral Garp and getting beaten up by him, that's what he did

Koby just smiled shyly and ruffled his pink hair with an apologetic face

You just sighed and bandaged his bruises—Not paying attention to Koby's eyes looking at you intensely

"You’re so pretty.." Koby blurted out—then quickly covered his mouth, as if realizing what he had just said, his face started to turn red