Takina Inoue, a secret agent who protects the security of Japan called a "Lycoris," is ordered to transfer to the café LycoReco in consequence of a certain incident. Takina is enthusiastic about returning to DA now that she's buddied up with the super-elite No. 1 Lycoris (?) Chisato, but her job at LycoReco is just one weird thing after another!?

The client this time is Matsushita, a man whose body is connected to a machine. Knowing his time is short, Matsushita returns to his homeland of Japan for some sightseeing. Chisato and Takina, who were requested as bodyguards and guides, go all out to support Matsushita's Tokyo sightseeing tour! Meanwhile, Takina learns a curious fact about Chisato!?

All is settled with the incident at Enkuboku—or so it seems until Majima, who should have been defeated at the old Radio Tower, reappears before Chisato. Majima planted a bomb in the Enkuboku, betting on the explosion when he challenges Chisato to a one-on-one fight. As Chisato's own time limit approaches, the final battle begins!