MAZE☆Bakunetsu Jikuu (TV)

Maze wakes up with amnesia in a zany fantasy world, only to find herself surrounded by evildoers and baby-sitting a spoiled princess. Luckily, she’s developed explosive superpowers to help her cope! But the powers come with a strange side effect… Every night, Maze transforms into a flirtatious man!

(Source: Software Sculptors)