After the 7 folded murder night in Tokyo, 《CYGNUS.CC》’s top magician Higashino Kouichirou, a.k.a Navi, was suddenly nowhere to be found.
Shibusawa Hibari, the grandchild of one of the victims of the murder, was secretly informed by police officer Shiraishi Masanori of details regarding the case that were held back from the world.
What she learned from him was that the news the media had been spreading about the culprit supposedly committing suicide after the incident was in fact forged and that most evidence actually points to Navi being the real culprit behind the case…
“It could be that I was only being used by him. But even so…”
Not able to shake off her feelings of trust towards Navi, Hibari borrows Shiraishi’s strength to find him. The only clue they have to is that summer, 4 years ago. The summer that《CYGNUS.CC》was touring in Japan.
The both of them trace their own memories of that time and seek out Navi’s former colleagues for more answers.