Play as a Heroic Spirit in the World of Kexue

My name is Fujimaru Ritsuka. On the surface, I am an ordinary student in Class B of the second year of Teitan High School. At most, I inherit the identity of the missing detective Kudo classmate. The identity is hidden by the organization. Both parents are loyal real wines with code names. They receive the salary of peripheral members and do nothing without worrying about being optimized. His deeper identity is that he is the founder and manager of the mysterious human security agency Phoenix Chaldea. But in fact, my true identity is a time traveler from the 21st century. My only wish is to visit more crime scenes and collect holy crystals to satisfy my collecting habit. For this reason, I put on layers of vests and turned the red and black sides upside down. ……………… One-sentence synopsis: A story about a time traveler who is an actor and uses different identities to bring everyone to the stage.