Researching the Ring of Fate

Researching the 命运之环 is a minor event unlocked by asking Calise about the Ring of Fate. Doing it will get you in a fight with a bunch of raging bulls and a packmaster. If you choose the wrong suspect during the feast, you will be able to chase after the assassin, getting in a 1v1 fight against 无面之刃. If you win, you get her bow and she wont appear in the last phase of The Siege of Khor'minos. If you lose, its a 坏结局. You also unlock the option to do the 命运之环 仪式 in Calise's path of Siege 收尾, giving you a permanent buff for the duration of the dungeon.