Anime characters don't always look their age. Sometimes it's a case of early puberty, as is true for Hotaru Ichijō of Non Non Biyori. Other times, puberty shows up later than it should, as is Honey-senpai's problem in Ouran Host Club. Every so often, a character's appearance is utterly inexplicable. In Masamune-kun's Revenge, Kinue Hayase is the 42-year-old mother of two teenagers, but she looks exactly like a little girl.
Excluding characters who are thousands of years old, here are a selection of anime characters whose physical appearances don't match up with their age.
Kinue Hayase presents one of the most extreme examples of an anime character who doesn't look their age. She's a 42-year-old mother of two, but you'd probably guess that she was in elementary school.
Her cute, flirtatious nature is a source of major embarrassment for her kids.
Eisaku Noguchi is the president of his school's chemistry club, but he's also a first year student, which means he's around 15 years old. Regardless of his actual age, his leadership role — coupled with his well-tailored suits and tiny mustache — cause him to resemble a middle-aged man.
His classmates are continuously surprised that he's not a teacher or upperclassman, and the show often takes time to remind viewers of his true age via subtitles.
Looming at a massive 6'7", the sorcerer Stiyl Magnus looks like he's well into his 20s. For this reason, it comes as a surprise to most that he's only 14. His unassuming age helps him out when he wants to illegally purchase cigarettes, since who on Earth would believe a minor could be almost seven feet tall?
Leorio Paladiknight is 19 years old, but he's often mistaken for a middle-aged man. When Killua mocks him for being old, he responds by insisting that he looks like a teenager. While his claim might be hard to back up, for the 11-year-old Killua, teens probably also seem relatively old.