Because of frequent asthma attacks, the young Anna Sasaki is withdrawn, shy, and cut off from classmates, which worries her foster parent constantly. A doctor advised that a move to the countryside might help: cleaner air and a calmer pace could boost her health and soothe her mind. While staying with her aunt and uncle in a seaside town, Anna spent her summer sketching.
During a stroll one day she came upon an abandoned estate called the Marsh House. She soon realized it was not empty after all, meeting a mysterious girl named Marnie instead. Marnie's effervescent personality gradually coaxed Anna out of her shell, and she began to return night after night to see the new friend. Yet there was more beneath Marnie's surface; as Anna"s stay in town drew to a close, she uncovered the secrets hidden within the walls of the Marsh House.
Omoide no Marnie recounts a poignant tale of a girl"s path to self‑realization and friendship, and the summer that will stay with her forever.