Umibe no Onnanoko, or A Girl on the Shore, is a coming-of-age romance drama anime film directed by Masaaki Yuasa. It is based on the manga of the same name by Inio Asano.
The film follows the story of Keisuke Isobe and Koume Satou as they navigate their young love. After Koume's crush leaves her heartbroken, she turns to Keisuke, a classmate who had previously confessed his feelings for her but was rejected. The two enter into a "friends with benefits" relationship, seeking to find comfort and solace in each other.
As their relationship deepens, they start to develop real feelings for each other but struggle to come to terms with what they are feeling. They are not the only ones affected by their relationship, as others around them begin to notice and become involved. The emotional toll of their decision to enter a casual relationship starts to take its toll on both of them, leading to a dramatic climax.
A Girl on the Shore is a dark and realistic portrayal of teenage relationships and the consequences of careless decisions. It is a raw and emotional look at the complexities of love and desire, and the toll they can take on young people. The film is beautifully animated, with expressive characters and stunning scenery that perfectly captures the mood of the story. Overall, A Girl on the Shore is a thought-provoking and moving film that explores the timeless themes of love, loss, and growing up.