Adventure with Harem and the System

ANNOUNCEMENT: THIS NOVEL CURRENTLY UNDERGOES REWRITING PROCESS SO SOME CHAPTERS STILL IN THE ORIGINAL DRAFT. ***** A prompt suddenly appears after MC had completed a game. [Do you want to accept new challenges that will shock you greatly] As MC learned about that, he quickly accept that before he literally being shocked to the death. MC wakes up at unknown place and been explained about his new adventure. He receives a typical system that any reincarnator or transmigrator have been received. He may encounter with allies (aka harem member) along his adventure and will help him as he travels along multiples world. Can he survive until the end? Or he died along the way? Let's find out how he do the adventure and the story behind it. ======= The image for the cover is not mine, it is from anime "Asobi ni Iku yo" and it may be change according the progress of the story. All characters except for my own OC are belonged to the creator for that anime, manga or novel. Thanks for your understanding. =======