Elf

Race: Elf

An elf whom Yousuke rescued in the other world.

[Spoiler] She has a crush on him, but since the term "tsundere" only got popular 4 years after Yousuke went into coma, he doesn't understand Elga's tsundere tendencies and thinks she is harassing him instead. [/Spoiler]

(Source: Isekai Ojisan Wiki and Wikipedia)