Eneri's Vessle of Sin:

Insignia of Lilith.

Description: "an insignia of the Servine clan? What's it doing here? The Insignia of a Servine who made a pact with Lilith to improve their skills in Servants. Only to have the consequence of being a Servant who'd put away their mental and physical health to the side to serve. The servant died a month later due to lack of sleep and starvation. The Servant's Insignia was later found to have taken a different shape and when a Servine wore it, the Servine acted the same way the last servant acted. The Servine also died the same way a month later."

Ensori's Vessle of Sin:

Hair tie of Asmodeus.

Description(Probably gonna be short): "The hair tie worn by Sinners of lust. Rumors spread that whoever wears it will gain absolute lust over power and love. People who've worn this are mainly from noble families as the person have been corrupted by this sin and Lust for Power."

Authors note: sorry about Ensori's part of this. I don't really have that much thoughts on Ensori's part.