The shrine’s four guardians (Spring, Summer, Autumn, Winter) each issue a “trial” for Kuro. These trials are framed as playful contests (e.g., a cherry‑blossom picnic that ends with a sudden rainstorm, forcing Kuro to “test the limits of her fluid control”). The humor stems from Kuro’s over‑enthusiastic attempts, often leaving Miyako in compromising positions—always resolved with a comedic “oops!” and a promise of “next time”.