I already have two characters I'd love to throw into this but I can't decide which one! >.>

One is a powerful technopath and the other is a girl who can use various star constellations as forms. For example, if she uses the Orion Constellation, she gets a stellar-energy bow. If she uses the Lepus Constellation, she becomes a parkour expert with the ability to move at quite a speed. Both characters are equally beloved so it's hard to choose!