In Black Clover, is Yuno is an elf? In the latest episode of Black Clover (ep100), Yuno seems like he's still himself even having his body used for the reincarnation magic of the elves.

Does it mean that he is an elf and his true power just awoken because of the reincarnation magic?
No yuno is not an elf and not Licht child.

Black clover Season 3 Episode 120


   Yuno realises the elf possessing him was Licht and Tetia’s unborn son,
 and Licht thanks Yuno for allowing him to meet him.