Three days from now is the Elven Festival, which the Elf race holds once every decade. On that day, all those destined to be connected with the Elves receive an elven token and travel to the Elf realm.
There are, however, restrictions on who can enter the Elf realm.
The restriction concerns everyone's immortal power; after all, the Elf race is exceptionally beautiful, and no one is allowed to ruin it.
Chapter 468