My setting of Ultragirl Maya's human form Higashi Katie is here: she is born in human from, as she haven't absorb enough Plasma Spark, and Darkness Spark cannot changes into a Spark Doll, however she cannot transfrom. After her parents (Ken & Marie) tuens into Spark Dolls once again, she obey parent's order, to find another Ultra- Spark Doll around the universe, by the help of 12th Doctor.

Her weapon Sonic Array, is reformed by the present of her brother, Ultraman Taro.
spoilers: her future husband is Ultraman Mebius, and Ginga is their future SON!!!!!!!!!!! And, she is the first Ultra Time Lord.

她在哥哥的提醒下，出發去不同的時空去尋找其他超人軟膠的下落，成為各平行世界的超人們所提及的紅鞋少女。後來在其中一次的任務中救了TARDIS，所以TARDIS Idris就送贈Maya屬於TARDIS的力量給她，讓她成為第一個有時間領主DNA的超人，達成你初為Maya設定的"自小就拥有非一般奥特人的力量" 的設定