Kyu Sagurada may be brilliant, but he’s taking the lazy route through high school—at least until he stumbles across a phone that can search through any and all information on earth. To curb his boredom, he starts solving local crimes and cold cases. But he soon finds out that his superphone might be the only lead on a cold case near and dear to his heart—the disappearance of his younger brother seven years ago!
Kyu comes away from his three-way chat with Detective Seomizu and One with the revelation that One is Zenichiro Kangan, the CEO of a powerful company! Convinced that he can’t let the egotistical man keep his superphone, Kyu decides to contact one of Zenichiro’s lackeys to win over a new ally. Will Kyu’s plans come to fruition, or is he just sprinting toward a dead end?
As Kyu mourns Moura’s murder, two new superphone holders show up to stake their claim, introducing themselves as Boken and Rei. Kyu plays an identity guessing game to recruit them onto his team. Will it be enough to turn the tides in his favor? Will Kyu defeat Zenichiro once and for all in this final battle?