Theresa is the Saintess and the heroine of the novel Talli transmigrated into. She is Talli's older sister by half a day, born prematurely and always weak, often bedridden. She possesses all the typical traits of a protagonist: delicate, soft, and brimming with magic. She has an overwhelming capacity for emotions and lavender-colored eyes. Currently recovering at a temple, she is the reason Talli was brought back to the Fred family, as a priest claimed a blood-related sister of the same age could help her recover faster.
