The Extra Is Too Powerful

Hit by a drunk driver and bedridden ever since, Um Tae-Sung now only knows the cruel reality of pitying gazes, medical fees, and being half-paralyzed. His only escape is reading his favorite web novel, "The Mage That Devours the World," but when the last chapter ends with the hero destroying everything, Tae-Sung realizes happy endings don't exist. That is until he wakes up one day as Mord, an extra from the novel! Now, he’s determined to create the happy ending he’s always dreamed of.

(Source: Tapas, edited)