My Little Old Boy Season 1 Episode 304 Episode 304 with Chung-ha ( Air Date 2022-08-07 ) Genre Reality, Talk category. Overview "How much do you know about your grown up son? In Mom’s Diary, the daily lives of the grown up celebrity sons are closely observed by their mothers. Do you know why your son drinks so much these days? How much do you know about your son’s philosophy in his life style? Heart-warming moments of observational communication between a mother and a son can be seen on Mom’s Diary.".