Maplestory was definitely the reference for this manhwa, try it out if you haven’t already! Many of the cosmetics and accessories are directly taken from the game (like the Cardcaptor Sakura collab outfit, and most notably Jistars’ —> his avatar is super common and very popular amongst male players.) Once you get into the game, you’ll be able to see all the references and niche colloquialisms that makes this manhwa so unique and enjoyable. I’ve found that some people don’t enjoy this manhwa for this reason, they might be better of with ‘Recovery of an MMO Junkie’ and other titles like that.

This is so Maplestory with the most self-aware dialogue. As an MMORPG enthusiast it is so easy to relate and feel immersed in the story