"Teacher, why do you always take off your rings at school? 'I couldn't hide my dismay at the words of my student, Shinichi-kun. When my husband was decided to go on a business trip alone, my relationship between us and my husband may have cooled down since that day when I chose to work over my husband. Shinichi-kun turned his passionate gaze at me, contrary to his cold husband. Of course I knew it was a good thing. Still, I couldn't turn my eyes from Shinichikun's straightforward and pure feelings...