Complex sentence: Before Elvira could kill Iñigo, Krisanta comes feeling betrayed by Elvira's disapproval of the use of Ilumina to get Iñigo to love her and defends him, giving up her loyalty to Elvira.
Split into simpler sentences: Before Elvira could kill Iñigo, Krisanta appears, feeling betrayed by Elvira's disapproval of the use of Ilumina to get Iñigo to love her. Krisanta and defends Iñigo, giving up her loyalty to Elvira.