"Ossan no Pants ga Nandatte Ii Janai ka!" introduces Okita Makoto, a 50-year-old middle-aged man whose life is defined by his old-fashioned values and strong prejudices against certain people and contemporary behaviors. These deeply ingrained beliefs create significant tension within his own family. Makoto struggles to understand and accept his son, who enjoys cute things, his fujoshi daughter, a passionate fan of BL, and his wife, an avid follower of male idols. This ideological clash leads to constant friction and a growing distance between Makoto and his loved ones.
However, Makoto's world begins to shift following an unexpected encounter with a vibrant young gay man. This interaction becomes a pivotal catalyst, slowly challenging his long-held biases and prompting a gradual reevaluation of his perspectives. The series chronicles Makoto's journey as he confronts his prejudices, learns to embrace diversity, and strives to bridge the gap with his family, exploring themes of acceptance, understanding, and personal transformation in modern society.
Other names: おっさんのパンツがなんだっていいじゃないか！, Ossan no Pantsu ga Nandatte Ii Janai ka!, Don’t Care for an Old Man’s Underwear!