World Of Game

Ryu Mei, a high schooler who has a love for Overpowered Fantasy BS hit her head from a heating arguement and died, transporting herself to a world of one of her guilty pleasure novels to where the overpowered Male Lead dog shitted everyone in the story and build himself a harem of hot-big breast anime girls used for fanservice and what-not.

"This plot could have been a shounen-type story if the creator wasn't so thirsty and nerf all the villains to make the protagonist so glorious!"

Mei, wanting to prove herself not a threat to the male leads, help making character developments to all wasted characters, and not make the world disappear from the oh-so-powerful male lead, she'll do what she can to survive her second chance.