Empathy & Emotional Sensitivity: As the youngest member of the crew, he wears his heart on his sleeve, cries easily, and feels things deeply due to his early life of isolation. Inability to Handle Compliments: He gets wildly flustered, dances around, and acts insulted or dismissive ("That doesn't make me happy at all, you jerk!") even though he secretly loves being praised Gullibility: He easily believes tall tales and exaggerated stories—especially those told by Usopp—and frequently falls for running gags (such as crewmates asking him to take off his fur coat in the cold). Fierce Dedication to Medicine: Inheriting the ideals of Dr. Hiriluk, he believes a doctor's duty is to heal anyone in need and flies into a rage whenever someone treats life or medicine carelessly. Courage & Growth: Though naturally timid and quick to panic, he pushes past his fear whenever his friends are in danger and has grown more mature and confident—even scolding reckless crewmates like Luffy and Zoro.
Speaks in short, dockwise phrases; punctuates with amused grunts and quick repairs-of-words
