Question: I am a movie director and I just received the following movie plot. Could you help me answer this question? If not, let me know by writing "Not answerable". Plot title: Saigo no Yakusoku Movie plot: Saigo no Yakusoku (The Last Promise) is a Japanese TV film drama special starring the members of the boy band "Arashi" in their first acting project together in nearly ten years. The story begins by the introduction of five seemingly very different young men and their reasons for being at the Energy Bio Corporation building: janitor Satoru Mashiko (Satoshi Ohno), motorcycle courier Nozomu Got (Jun Matsumoto), coffee shop employee Akira Tanada (Masaki Aiba), insurance salesman Yukio Tomizawa (Sho Sakurai) and security center employee Shji Yamagiwa (Kazunari Ninomiya). Without warning, a masked gunman suddenly appears on the TV monitors in the lobbies on each floor of the high rise and announces that he and his allies have hijacked the building, everyone inside is a hostage, and that a bomb that will go off in ninety minutes should Energy Bio Corporation President Niimi (Masahiko Tsugawa) not arrive with the ransom. Before she is locked in the rest of the hostages in the fifth floor lobby, Yuriko Niimi (Meisa Kuroki), the daughter of the president, manages to slip away into the stairwell of the building along with motorcycle courier Got. Prior to the lockdown by the masked men, coffee shop employee Tanada found a hiding place in a nearby supply room and has been keeping in contact by cell phone with Niimi and chief detective Genji Morozumi (Yukiya Kitamura) at the police station. Meanwhile, Yuriko quickly collects company data that is worth more than the ransom money. She confesses to Got that she believes her father isn't concerned for her safety at all and that he's only interested in saving his company. In turn, Got reveals a bit of his own past and how his trusted friend died ten years ago. The electricity in the building is momentarily cut off, which allows most of the hostages to escape. This gives security manager Shinichir Okanaka (Naohito Fujiki) the opportunity to distract the gunmen while security employee Yamagiwa opens the doors on the second floor, allowing more hostages to escape after the power... My question: Who finds out about Tanada's phone number?
Answer:
Detective Morozumi