Set before the original Soul Eater series, Soul Eater NOT! unfolds at the Death Weapon Meister Academy, where individuals with the unique ability to transform into weapons (humans) and those who wield them (Meisters) undergo rigorous training. While the main characters aspire to become valiant defenders against looming threats, a separate class focuses on mastering their abilities to prevent harm. Tsugumi Harudori, a halberd-transforming student, grapples with the choice of partnering with either Meme Tatane or Anya Hepburn, sparking a tale of friendship, self-discovery, and the complexities of student life in an extraordinary setting.