Iyo is a caregiver with many worries, and her husband is so busy with work that he neglects their family... She continues to work hard for others, but her efforts go unrewarded. She tries to keep herself going by telling herself, "I'm maintaining my sanity by supporting others," but her heart is worn down to its limit. Then one day, Morita, a former teacher she visits, sees right through her... She unintentionally lets out a cry for help, but as Morita encourages and embraces her, she finds relief from her pain...