まい

The younger twin sister. Big-breasted. Quick-witted, dexterous, and a genius type. Bright, cheerful, and proactive. Skilled at being affectionate and devoted to her sister. She returned to Japan for a certain reason, but is deeply grateful to her uncle for accepting her. She adores her sister and calls her ‘Sa-chan’. She spends her days doting on both of them while also being considerate of her sister. She doesn't brag about having larger breasts than her sister; in fact, she finds it rather bothersome. [From the Official website]