A 5-year-old at YowaPeda Kindergarten. A member of the Sohoku Class. Same age as Imaizumi and Naruko. Born March 7th, Pisces. Blood type O. He has short hair, a small and thin build, and wears round glasses. He is not good at dealing with the forceful, aggressive, and intimidating atmosphere typical of athletic types. Because of this, he intended to never join a sports club (partly to avoid encountering people he perceives as scary or violent). Furthermore, his grades in PE are not very good. With some exceptions, he often uses polite language even with classmates and younger children, and sometimes uses formal speech even in his inner thoughts. He speaks like a 5-year-old. He loves Mr. Yusuke Makishima.

A teacher at YowaPeda Kindergarten. Close friends with Hajime Aoyagi. Attended Minami Junior High in Chiba City. Height 173cm, weight 59kg. Born September 11th, Virgo. Blood type A. His hobbies are karaoke and singing in the bath. His best subject is math (he participated in the prefectural abacus competition in junior high). Characterized by his somewhat long, permed hair. Naruko calls him "Perm-senpai." In early depictions, his hair was frizzy, but it later settled into waves. He has very curly hair; even if he tries to blow-dry it straight after a bath, it immediately returns to its original state. In charge of the Sohoku Class.

A teacher at YowaPeda Kindergarten. In charge of the Sohoku Class. Teshima's classmate. Height 165cm, weight 56kg. Born February 24th, Pisces. Blood type AB. His talent is illustration (he had a grade of 5 in art during junior high). A senior staff member with brown hair and bangs long enough to cover one eye. His hair is blonde and grows to about shoulder length. He has a bit of a deadpan look. It is not fixed which eye is covered. He is taciturn and hardly speaks.

A 5-year-old in the Hakone Class at YowaPeda Kindergarten. Born May 29th, Gemini. Blood type AB. Blue hair with a cowlick. He has a habit of wandering off. He has a laid-back, easygoing personality and often arrives late or boldly skips class. He speaks like a 5-year-old.

A 5-year-old in the Sohoku Class at YowaPeda Kindergarten. Born January 15th, Capricorn. Blood type B. A boy with pinkish-brown hair parted in the middle and sharp, upturned eyes. He has an honest personality and rarely hides his emotions. He often competes or fights with Doubashi. He speaks like a 5-year-old.

A 5-year-old in the Hakone Class at YowaPeda Kindergarten. Born September 5th, Virgo. Blood type O. Due to his rough speech and behavior, he is thought to have a wild personality, but he is surprisingly sensible. He is the type to overwhelm others with head-on strength rather than using schemes. He speaks like a 5-year-old.