What is the 'Isekai' genre, and what are its common elements?

Isekai, a Japanese term meaning 'different world,' is a genre where a protagonist is transported from their ordinary life into a new, often fantastical, world. This transportation can happen through various means: death and reincarnation, being summoned, or even accidentally falling through a portal. Common elements of the Isekai genre include the protagonist possessing knowledge or skills from their previous life that give them an advantage in the new world, often leading to them becoming exceptionally powerful or influential. The new world itself is usually rich with magic, mythical creatures, and unique societal structures that the protagonist must navigate. Many Isekai stories also feature elements of adventure, questing, and character growth as the protagonist adapts to their new reality and strives to achieve a goal, whether it's to return home, save the new world, or simply live a fulfilling life. The appeal often lies in the wish-fulfillment aspect, allowing readers to experience a thrilling escape into a world of unlimited possibilities and extraordinary feats.