In a downtown Tokyo café, a group of girls will help sort out any problems to help the local customers.

A Japanese café in Tokyo serves delicious coffee, super sweet treats and something more. From making local deliveries to chaperoning to getting rid of zombies and even fighting a giant monster, whatever the problem and no matter the order, leave it to them.

The number of terrorist acts in Japan has never been lower, thanks to the efforts of the Direct Attack syndicate. The organisation raises orphaned girls as killers to carry out assassinations under the "Lycoris" program. Takina Inoue is an exceptional Lycoris with a strong sense of purpose and a penchant for perfection. But when she is transferred out of DA headquarters for insubordination, she arrives in her new base of operations - LycoReco, a branch of DA in disguise as a cafe. Feeling like a fish out of water, Takina itches to be reinstated into DA, but her new partner, the famed Lycoris prodigy Chisato, is determined to prove to her that there is more to a life than just taking them.