FTHTD-199 Old-fashioned beauty stepmother Yui Hatano

The protagonist was supposed to go on a hot spring trip with his wife, but instead, he ends up going alone with his mother-in-law. He's worried about being alone with his mother-in-law, whom he only sees once a year when he visits his wife's family, and who has a somewhat unapproachable, cool demeanor. Then they arrive at the hot spring inn. As they spend time together, his perception of his mother-in-law gradually changes... and they begin to reveal everything about each other...