Ep. 11: David and Julia seek a mysterious container at the school ball while Saya encounters Karl.

11

During the annual boarding school ball, David and Julia utilize the event to investigate a mysterious container linked to incidents in Vietnam thirty years prior. Simultaneously, Saya engages in a dance with an attractive stranger. This interaction is interrupted when Karl, identified as the Phantom, launches an attack against them. David eventually discovers that the container holds Diva. Consequently, the group pursues the container to secure it. The narrative focuses on the convergence of these separate events during the social gathering, highlighting the search for the object and the subsequent confrontation initiated by Karl.