Emilia Mercurio, a novice saint candidate at the Serenade Girls' Convent, is abruptly expelled by the Mother Superior. The reason given is Emilia's unsuitability for the role, citing her excessive eating and sleeping habits, which were reported by Sister Cocona, a top student known for her malicious gossip. Furthermore, a magic power measurement reveals Emilia has no discernible magic, leading the Mother Superior to dismiss her as a "failure."
Devastated but resolute, Emilia leaves the convent with her meager belongings. She realizes she has never been outside the convent walls and feels a mix of sadness and excitement for the unknown world. Meanwhile, the Mother Superior and her secretary discover that the magic measurement device actually showed Emilia's magic at its maximum reading, indicating an unprecedented level of power, not an absence of it. Fearing their mistake and the potential implications, they decide to ignore this discovery.
Emilia, now alone and starving, encounters Abigail, a strikingly beautiful and confident woman. Abigail, noticing Emilia's distress and hunger, offers to treat her to a meal at an inn called "The Flying Frog." At the inn, Emilia devours a hearty meal of scallion porridge, experiencing true satisfaction for the first time. Abigail, intrigued by Emilia's voracious appetite and her past living conditions, reveals she is a great magic researcher. She uses a more powerful, self-developed magic measurement device, which also overloads, confirming Emilia possesses immense, unmeasured magical power. Abigail theorizes that Emilia's poor nutrition and lack of rest have suppressed her growth and magic, and proposes that Emilia join her to improve her health and study her abilities.
The innkeeper, grateful for Emilia's miraculous revival of his withered amber peach tree with a prayer, offers them free lodging and food. That night, Emilia experiences the luxury of a soft bed and a warm bath, starkly contrasting with her harsh convent life. Abigail is shocked by the extent of Emilia's deprivation.
The next morning, Emilia awakens after three days of deep sleep, feeling refreshed. She enjoys a delicious peach pie, a new experience for her, and her magic power continues to grow, as indicated by Abigail's increasingly powerful measurement devices. Their peaceful morning is interrupted by the appearance of a spirit from the revived peach tree, who recognizes Emilia's pure magic and calls her a "divine child." Impressed by Emilia's potential and the spirit's testimony, Abigail formally invites Emilia to travel with her, promising to help her become a fully realized individual. Emilia eagerly accepts, determined to follow Abigail.
Back at the Serenade Girls' Convent, Sister Cocona is reprimanded for failing to meet the production quotas for holy water and potions. She blames the other novices and the absence of Emilia, whom she had orchestrated the expulsion of. Cocona, consumed by jealousy and resentment towards Emilia, vows to prove the convent can succeed without her, unaware of the significant workload Emilia had been shouldering.
