osasunalover is tiktok creator with sorta small following, but they are just so extremely lonely that they literally became obsessed with the haikyu ship of osamuxsuna, So osasunalover is now a derogatory term used against people who ship osamuxsuna <3

Someone obsessed with the haikyu ship osamuxsuna; they also might be a tiktok creator with an obsession for the ship.