These stories feature characters who are transported into another world, usually into a fictional one such as a novel, and are bound to a sentient, often non-metaphysical "system". The system is a program that dictates what the...
Similar to reincarnation, transmigration is when the protagonist takes over the body of a person existing in (usually) another world. It is sometimes also used to refer to being transported back in time (in such cases where the...
List of world hopping light novels (with some manga/manhua thrown in), mostly BL (not in any particular order). In these series, the protagonist is transmigrated into other worlds for some purpose, often to complete certain tasks...