So I was reading A Happy Ending for Villains, a manhwa, and was wondering if there are more stories where the main characters need each other.

In the manhwa, the main characters kinda need each other to function properly because of their trauma and I was wondering if there were others like it. I don't really know what exactly its called, codependence? It doesn't matter if it's romance or good friends or just random strangers who just need each other to live. It doesn't have to be because of trauma either, could be because of something smaller too. Something along those lines. Like in the manhwa I brought up above, we see that without the others, these people kinda become depressed and just, sad? Not quite sure how to put it.

I Failed to Oust the Villain!
Sachi-iro no One Room

Haven't read the one you mentioned, but I would say these two series definitely feature codependence. They're very different from each other though so mind the tags lol

I'll definitely check out the first one. I actually remember reading the second one a long time ago and I'm pretty sure I finished. Thanks for the recs!

Not sure if it counts but the one that came to mind was https://www.mangaupdates.com/series/e1qxidr/shounen-shoujo-akatsuki-akira

-Sincerely, six angry cats in a trench coat

Yeah lol i was reading that while it came out cause of NISIOISIN.