SDN48�s Undergirls A have just revealed the PV for their song �Tengoku no Door wa 3 Kaime no Bell de Aku�. This is the coupling song to their latest single, �Ai, Juseyo�.The Undergirls A members are as follows: Ohori Megumi, Noro Kayo, KONAN, Urano Kazumi, Akita Kazue, Chen Qu, Tezuka Machiko, Hatakeyama Chisaki, Ito Mana, Kimoto Yuuki, Ninomiya Yuka and Matsushima Rumi. Check out the PV below!