Mahiro Tadai, born March 4, 2000, in Japan, is a leading Japanese adult video actress performing under the name 唯井まひろ. She debuted in June 2018 at age 18 with SOD Create and has since starred in over 130 films. Standing at 156 cm with measurements of 86-58-86 and an E-cup, her petite, youthful look and innocent charm have made her a fan favorite in the JAV industry.
Tadai also works as a gravure model, YouTuber, and Twitch streamer, sharing lifestyle and behind-the-scenes content. Active for eight years, she remains popular for both her on-screen performances and engaging online presence, amassing hundreds of thousands of followers across platforms. Her career highlights her versatility in cute, schoolgirl, and various themed adult videos.