Nombre original: 最期の星
Fecha de estreno: 30 de enero de 2018
Película
Tiempo promedio: 27 minutos
Géneros:
Sinopsis: Kotoko, who has just started high school, feels bored on a daily basis. Seated behind her in class is Sachi Seto, who is struggling with illness. Though she has not yet met anyone, they all call her Sacchan. One day, a mysterious girl appears before Kotoko, changing her boring existence. Who is she?