Mamiya starred in the 2016 erotic suspense film The Crawler in the Attic (屋根裏の散歩者, Yaneura no Sanposha), an adaptation of an Edogawa Ranpo story. That same year she played the lead role of Shiori in the Akihiko Shiota film Wet Woman in the Wind (風に濡れた女, Kaze ni nureta onna), one of five films commissioned by Nikkatsu as a new take on the roman porno films of the 1970s and 1980s. Glenn Kenny, writing for The New York Times, remarked that Mamiya had "a smoldering quality that fit the bill" but suggested that "the 'roman porno' reboot project should have rebooted its sexual politics". Slant Magazine noted the film's resemblance to "vintage American screwball comedy, in which a rigid man is freed of his reservations by the uninhibited behavior of a beautiful and intelligent woman". Mamiya received an Emerging Actress Award at the 26th Japanese Professional Movie Awards for her performance in Wet Woman in the Wind.
