Um, or Isida among the Unredeemed

According to the members of a rather likable, at first glance, sect of Laskentarians, whose faith is a fantastic mix of various religious traditions, God's chosen ones are born on February 29. An exception is the granddaughter of its founder, Isida, who has never left the sect - a young, naive, and charming young lady who also possesses the gift of Healing. However, the situation arises such that Isida has to embark on a journey into the sinful outside world, setting out in search of her cousin who has fled from her brethren, destined for the main role in the upcoming Festival of Love. How much of her all-conquering naivety will remain by the end of the journey?..