Thanatos Eros
Name in Japanese	タナトス・エロス
Romaji Translation	Tanatosu Erosu
Personal Info
Gender	Female
Occupation	Dark Witch

Thanatos Eros (タナトス・エロス, Tanatosu Erosu) is the main antagonist in Stardust Witch Meruru, Kirino's favorite anime.

In the preview of the 3rd season of the magical girl anime, Thanatos was visible in the background when Meruru turned into a dark witch implying that she maybe somehow responsible for Meruru's transformation.

Kyousuke suggested Ayase to cosplay as her in episode 10 in a bid to win a Meruru figurine in a cosplay competition but Ayase rejected his idea because Thanatos' outfit was too lewd for Ayase.