Eda, a priest respected for her integrity and noble words and actions, performs a special baptism ceremony in her place when her teacher, the high priest, falls ill. In an old monastery that is closed for 12 days for a ceremony, the only people there are a violent prince about to be baptized, the most noble knight in the country, a mysterious duke, and his close friend, Saint John, who is left alone to help Eda. On that first night, Eda is humiliated by an unknown man. The four men I met the next morning. However, no one can even guess that he is the kind of person who would commit such a terrible act. Who is the culprit? The second night comes again to Eda, who is suffering from fear, shame, and guilt...