At the age of 20, Kinoshita Rinko was terminated from her job during her probation for owning up to a mistake her colleague made. She didn't want to be all by herself and cry, but her good intentions led to her downfall. On her way back home, she encountered a distressed lady who caught her attention. Rinko's compassionate nature compelled her to lend a helping hand to the lady, who confided in her and asked her to take her place in supporting her brother, Shinomiya Ryou. The lady approved of Rinko's decision wholeheartedly.
