I genuinely cant remember the name of this one GL manhwa on webtoon, starts with a girl with short hair living in a world where they can respawn, with monsters, not really a tragedy, but like their world is a game of sorts, she and her party go up a tower (full of monsters) and try to defeat the evil powerful queen at the top, but over time she falls inlove with the queen, she stresses since she has to pick between her love for the queen or the well not really as imp as the survival of humanity. Also remember her male friend having a specific liking to the snake lady i think?