On Niconico Live Streaming, anyone can broadcast live—users who stream are called "livecasters." In this special broadcast, two sexy grandmas, Yukie Miyamae and Yuko Ishibashi, along with a kindly grandpa, Koizumi, make their live debut. Also joining as a supportive and alluring presence is former news anchor Hara Miori. This release features never-before-seen footage from the special live event "When a Slightly Naughty Grandpa and Grandma Make Their Niconico Debut," broadcast on September 22, 2016, capturing the day's rare and intimate moments in one special edition.