Nothing important really just his friends lore. Honestly think it's a shame it ads a lot seeing him interact woh his friends and their issues. Basically Namsoo is his other gay friend who is also the gym instructor. He has a fling woth this guy who wants to date but he wants to remain fuckbuddies.
Did they completely skip the namsoo and his fuckbuddy/bf fight scene nooo I love the art but man lately they've been cutting out so much plot ...