I Have Every Superpower, So I’m Invincible

[Elemental Powers, with no conventional light or dark] + [Strong Female Lead] + [Ensemble Cast, mostly girls with a few boys] + [No CP] + [Transmigration] + [Power Fantasy] + [Decisive and ruthless] + [Slow burn, the pacing may be a little slow]

Qi Wan, a college student, was discussing a novel's plot late one night with her best tortoise. When she woke up, she discovered she'd transmigrated. Even more surprising, she wasn't a native of this world either.

In this world, where demons have invaded Blue Star, only a little over six thousand square kilometers of land remain, and the oceans have become the demons' lairs.

Qi Wan arrives and tramples demons underfoot, punching traitors in the face. Along the way, she meets one worthy friend after another, and on her journey of collecting friends, she saves this near-extinct planet.

Standing atop a sea of corpses, Qi Wan looks utterly innocent:

“What, if it isn't forbidden, that means it's allowed, right?”

“Wait, you can't manage something that simple?”

“Hey, any of you got a problem with me taking you all out?”

Everyone behind her just watches with cheerful grins...

I'm no good at writing blurbs. Give the story a try.