Also known as: イアス, 伊埃斯
The Bangboo (Zenless Zone Zero) in Zenless Zone Zero operated by Phaethon (Wise (Zenless Zone Zero) and Belle (Zenless Zone Zero)). It is used to guide the Hollow Raiders through the Hollows, thus it is the most likely to be out and about.
It wears an orange Bandana around its neck with the number "01" printed on it.
Belle and Wise own at least two other Bangboo identical in appearance to Eous except for the number on the bandana: Bangboo 18 (Zenless Zone Zero) and Bangboo 6 (Zenless Zone Zero). However, since Eous is by far the one most commonly depicted, this tag should be used if the number isn't visible.