SPEC: Heaven is actually the second movie of the SPEC series, which involves a team of individuals with special powers who are tasked with investigating and solving supernatural crimes. The movie centers around two members of the team, Toma Saya (played by Erika Toda) and Sebumi Takeru (played by Ryo Kase), who are investigating a series of bizarre incidents that seem to be connected to a mysterious organization known only as "Amagi Corporation."
As they delve deeper into the case, Toma and Sebumi begin to uncover a number of secrets that have been kept hidden for centuries, including the true meaning behind the words "Simple Plan" and the Third Secret of Fatima. They also encounter a strange and enigmatic figure known only as "the White Man," who seems to be orchestrating events from behind the scenes.
Throughout the course of the movie, Toma and Sebumi must use their special powers and work together to unravel the mysteries and stop Amagi Corporation before it's too late. Along the way, they also form strong bonds with other members of their team and learn more about the true nature of their own abilities.
Overall, SPEC: Heaven is a thrilling and suspenseful addition to the SPEC series, with plenty of twists and turns to keep viewers guessing until the very end.