Niina implores Meru Iroha to reveal her navel. As she exposes her slender waist, Niina eagerly inhales the scent of Meru's belly button, causing her muscles to twitch. Niina explores it with her tongue, savoring its bitter yet tantalizing taste. Overwhelmed by Niina's saliva and fervent tongue play, Meru succumbs to pleasure in this delicate dance of shy submission and lesbian domination.