A Faux Vessel (偽りの器 Itsuwari no Utsuwa ) is a detachment of a Crimson Lord.
Fumina Konoe is an example and is the Faux Vessel of Hecate.
Faux Vessels are usually humanoid with a resemblance to their Creators. When Hecate reabsorbed Fumina, she retained the vessel's emotions, shedding tears and even hesitating to fire at Yūji.