There's so much wrong here, the plot is just basic, the characters are barely tolerable, the love plot is just meh, and as always Japanese authors use RAPE as a PLOT DEVICE i hate it despise it, its such an awful thing and you see it every second manga as just a way to push the plot forward, i hate it.
Omega ni Dake wa Naritakunai!! ~Isekai Tensei Shitara Ane no BL Manga no Nakadeshita~