Kasumi, a child welfare officer who has entered the child guidance center as a new graduate and has been in her second year, struggles to fulfill her duties, even though she sometimes has doubts about how to proceed with her work. One day, she takes care of Hina, a 9-year-old girl who was temporarily taken into custody due to suspicion of neglect. It seemed that Hina would be able to go home soon after seeing her parents deeply reflecting on her....