Niigaki Risa (22) and Mitsui Aika (18) recently attended a small release event for the DVDs, “Hontoni Atta Kowai Hanashi 3D” and “Real Kakurenbo Final“, on January 12th. Now January 12th also happens to be Mitsui’s birthday, so the star received a cake at the event along with the well-wishes of her fans. Mitsui revealed...