Reina, whose husband disappeared 20 years ago, worked hard and raised Tatsuya, who was a student, to be a fine man. - He helped Tatsuya go on to university, got a job, and raised him to become a fine member of society. - As a token of his gratitude, Tatsuya gifted him a trip to a hot spring. - Ignoring Reina who was honestly excited, Tatsuya had made a certain determination. - He was going to confess that he was in love with Reina as a member of the opposite sex...