Dahlia Rossetti lives in a world of magic. While she's still very young, her father shows her a beautiful magic device which inspires her to become a magic artificer just like him. One day, she tries to build a device on her own, but...

Dahlia is inspired to develop a raincoat when she sees her father's coat soaked with rain. She persists through rounds of trial and error with the assistance of her fellow apprentice, Tobias. Her finished work leads to unexpected outcomes.

While out in the forest, Dahlia helps a gravely wounded knight named Wolf. He tries to repay her kindness, but she declines. Meanwhile, the Trade Guild discovers an irregularity in a contract with Tobias, and Dahlia is at the center of the issue.

After having her eyesight healed, Dahlia stops by a café. As she waits for a server, she notices a flurry of activity. She looks up to find Wolf walking straight toward her! Later, she visits a magic device shop and learns something surprising.