Hyperion Captain, Currently in Progress!

[Just a story + Honkai Impact 3rd + heavily unconventional AU + extensive worldbuilding overhaul + lots of original characters + fanfiction + MC + Genshin Impact + ensemble cast]

An epic saga passed down and carried forward by Captains. This time, the Captain is no longer just a background character, but an ordinary person who truly keeps moving forward to fight Honkai. The story is told from the perspectives of multiple protagonists. This time, Honkai is no ordinary disaster: it threatens the reality we live in, the True World, the Sea of Quanta, the Imaginary Tree, and worlds beyond. Of these four, all but the True World have already been infiltrated by Honkai. When axioms rise above laws and Herrschers surpass gods, only the Captain...

Oh, and just as the author said at the start, this story is told from multiple protagonists' perspectives, so there are no fixed male or female leads, as has already become clear. The Captains don't fall in love with one another; their relationships are purely platonic friendships.

That said, there is a clearly established side pairing (HS), though the author hasn't written much about the two of them.