A first-year student at Blueberry Academy, Kieran is a quiet boy with a gentle nature, often hiding behind his older sister. Despite this, he desires to become strong. Hearing the story of how the Loyal Three laid down their lives to protect the land from the evil Ogerpon, Kieran actually came to admire Ogerpon for her strength and independence, and how powerful she was alone.

According to local Kitakami beliefs, worshiping the Loyal Three would grant various benefits such as kindness, success, and good fortune, and so he came to visit a peculiar shrine to the Loyal Three with the hope that they could grant his wish to be more like Ogerpon.

As in turns out, the spirits decided to grant his wish, but not in the way he expected, as the slender young boy would find himself transformed into a busty female version of the Pokémon Okidogi, boasting a pair of large, heavy, fur-covered breasts along with a mischievous grin full of sharp, jagged teeth, and a new attitude to match her powerful and muscular build.