This release from Wakashi Labo is a rare one, focusing almost exclusively on underarm tickling. Highly recommended for armpit fetish enthusiasts, as Nao's reactions are exceptionally strong. The video begins with a thorough massage, during which Nao occasionally shows signs of ticklishness. Her clear sensitivity in the underarm area becomes immediately evident, as she struggles to endure. The real action starts when she raises her arms, fully exposing her armpits. Gradually, her laughter and squirming become uncontrollable—adorable and intense. To ensure her muscles are properly loosened, both armpits are gently tickled with light, teasing strokes. As the creator theorizes, once the muscles are relaxed and tension or waste buildup is reduced, even soft tickling becomes extremely effective—especially on her right armpit, which proves highly sensitive. The left armpit receives equal attention, and in the latter half, most of the tickling occurs while her arms are held up in a "banzai" position. Nao writhes and flails helplessly, her reactions utterly endearing. If you love watching girls being tickled during lymphatic armpit massage, this one's a must-watch.