It's understandable , the mc died in one world and reincarnated into another , but the reincarnation is not free , he must prove his worth for reincarnation, so he must finish missions arranged by the system to pass it's tasks and reincarnate. Yeah new concept.
balubalubalu666
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LIKEalki006:Hey, why is this +18 , even system based can have ***** concept ah!!.