Nymph

Nymph (ニンフ,, ninfu) is an Electronic Warfare Angeloid Type β (Beta) (電子戦用エンジェロイドタイプβ（ベータ）,, Denshi-sen-yō enjeroidotaipu β (bēta)), is one of the characters from the Sora no Otoshimono series who mysteriously appears in Tomoki's house, originally being tasked with returning Ikaros back to the Synapse.