PENGUIN HIGHWAY

Budding genius Aoyama is only in the 4th grade, but already lives his life like a scientist. When penguins start appearing in his sleepy suburb hundreds of miles from the sea, Aoyama vows to solve the mystery. When he finds the source of the penguins is a woman from his dentist’s office, they team up for an unforgettable summer adventure! (Source: Eleven Arts) — Description from AniList community (anilist.co).