The Angel of Charity. Metatron can't refuse a person in need, but she's not very smart and has bad eyesight, so often her ministrations make matters worse and cause her elder sister, Sandalphon, to worry about her. Metatron's personality becomes sadistic when she's holding a syringe, and she gets an overpowering desire to perform extreme treatments.
The Seven Heavenly Virtues
Set in the same timeline as Sin: Nanatsu no Taizai, Nanatsu no Bitoku follows a group of angels sent from Heaven to look for a potential "Savior" to counter-attack the demonic influence being spread by Lucifer and the other emissaries of Hell.
