Ossan no Pantsu ga Nandatte Ii Janai ka!

48-year old Okita Makoto is a middle-aged man who is set in his prejudiced ways. Because of his conservative views, he is disliked by his son, who likes cute things, his fujoshi daughter, who likes BL, and his wife, who is a fan of male idols. After meeting a gay young man, Makoto begins to slowly change his way of thinking.