Female animator, character designer, and illustrator. A member of animation studio WHITE FOX. Character designer for the Higurashi no Naku Koro ni, Ichigo Mashimaro, Jinrui wa Suitai Shimashita, Kamen no Maid Guy, Pita-Ten, Sankarea, STEINS;GATE, Strawberry Panic! and ZOIDS GENESIS animated series.
Names: 坂井久太 (Sakai Kyuuta), 坂井きゅう太 (Sakai Kyuuta), さかいきゅう太 (Sakai Kyuuta), 坂井久美子 (Sakai Kumiko), あおい小梅 (Aoi Koume)