With six months to prepare for the upcoming battle against the Spade Kingdom, the Black Bulls member Asta, Noelle, and Finral, along with Golden Dawn member Mimosa and others, have begun their training with the four guardian spirits of the Heart Kingdom to increase their capabilities physical, spiritually, and mentally. Noelle's training will require her to understand herself more, as the great spirit Undine, tries her best to train her, but will Noelle's Tsundere personality get the best of her?
3 parts