Nyaruo

Nyaruko's older brother. He has great hatred and jealousy toward Nyaruko since she graduated from one of the best colleges in space as the best of her year, while he dropped out of a third-class college. To seek revenge, he arrived on Earth and killed the gods in Dreamlands.

[Spoiler] He is defeated by Nyaruko with Shantak-kun in her motorcycle form; in the novel he was run over multiple times in Dreamlands and later taken into custody by the Space Defence Agency; in the anime he is bumped on the leg and sent flying. Nyaruko looks down on him as she calls him a "wild Nyarlathotep" rather than her brother in the story. [/Spoiler]

(Source: Wikipedia)