Certain reality warping otaku

*I own nothing other than OC* *English is not my first language* Typical world hopping fanfic. MC will be OP from the start in sense but will prefer to 'train' if he can. Unsure about harem but world hopping fanfic without harem is rare and I as man of culture will certainly regret leaving behind some girls. New to whole writing thing so don't expect much