Isekai  In some versions, the protagonist is depicted as being already familiar with the parallel world, as it is often a fictional universe from a fictitious work published in the protagonist's origin universe. It is equally likely the parallel world may also be unknown to them, as is the case with "Sonic X". The new universe can be an entirely different alien world where only the protagonist retains knowledge and has any memory of their former life, as in "Saga of Tanya the Evil" and "Ascendance of a Bookworm". How the protagonist gets there can vary greatly: in some media, they are reincarnated into that world after dying; in others, they are summoned or teleported to that world by accidental or intended reasons, as in the case of "Isekai Cheat Magician"; or they may unknowingly walked through a portal connecting two worlds, as in the case of "Spirited Away" and "Inuyasha". In "Sorcerous Stabber Orphen", an entire population of humans appeared in the magically created world was transported from Earth and got partially mixed with local dragonlike Heavenly Beings. It may also be one where a formerly virtual world turns into a real one, such as in "Log Horizon" and "Overlord". The subgenre can be divided into two types and . The former, where the protagonist gets transported to another world (e.g. by traveling into it, being summoned into it, or taking possession of another being), was more common in earlier works. Whereas the latter, where the protagonist dies in their original world and is then reborn in another world, became more common in newer works. The common usage of "truck-kuns" as plot devices in the deaths (and thus reincarnation) of the main protagonist led to a popular internet meme, as well as being parodied in "KonoSuba" when the main protagonist is killed by a tractor. In some works the person being transported is a NEET, shut-in, or gamer (as in "No Game No Life"), who in the new fantasy world, are now are able to succeed through use of their comparatively unimportant-in-real-life genre knowledge or skills, or they may have special skills or equipment, such as a game interface only they can access. Their power can range from tremendous magical abilities surpassing anyone else, as in "In Another World with My Smartphone", to relatively weak, as in "", where the protagonist does not gain any special power beyond the ability to survive death in a type of temporal loop.