I’m looking for a good emotional jpop song with a nice drop that’d make an excellent final “anime ending theme” for my D&D campaign

Howdy, r/jpop!

I am approaching the end of a 4-year D&D campaign that has been, shall we say, heavily inspired by anime. To the point where for every "cour" I've come up with an OP/ED theme I've taken from various series, other artists I've liked, etc. (I ask my players stuff about "what is your character doing in X situation / what's their action scene" and then do an "animation"… by which I mean we just use our imagination)

We're coming up on the last act, and while I have my OP set, I am just blanking on a good ED! And I was hoping I could get some recommendations.

For context, the vibe is similar to Gundam 00's "Trust You", in that the "animation" is about the end of combat, exhaustion, what happens after the war, etc. This doesn't mean that I need the song to sound like this, that's just what's going on.

I'd love something that's got a lot of feeling to it, and especially one that has a really good drop. I'm seriously open to any artists, genre, so if anything comes to mind, lay it on me!

(if you're curious as to my taste thus far, these are what I've used as the existing OPs/EDs for the past 7 arcs, but I'm seriously open to new stuff)