Momo gets pulled into a spy cell where the real mission isn't saving the world, it's learning to trust five other girls who become her actual family. The show treats the spice-power system like a real craft, something you learn and master together, not a gimmick. Every episode earns the chemistry between them because it never cuts corners on how they actually become a team.

Momo Minamoto's quiet high school routine changes when she is recruited into Tsukikage, a secret intelligence agency working in the shadows of Sorasaki City. Momo is shy and hopes to uphold justice like her father, a police officer, and her senses are so sharp that one lick tells her what someone feels. Under senior member Yuki Hanzoumon, she trains alongside other girls who use secret tools and special spices that boost their abilities, and through the mentoring system they grow closer. When the criminal organization Mouryo infiltrates Sorasaki, Momo works with her friends to protect her family, friends and neighbors while keeping up with school life.