The main character in Gonna Be The Twin-Tail gender swaps when he goes into combat mode. Not sure how much of that theme they'll explore if he isn't swapped while off the battlefield. Only a couple episodes are out so far.
in Fairy Tail 아니메 there was one episode a magic which changed everyone's gender........he he eh in this pic both Lucy and Gray both swaped their bodies......eh eh eh later it happened in entire guild...........eh he he he in this pic Gray inside lucy trying to remove lucy's 셔츠 and lucy inside gray trying to stop him.........eh eh eheh
