"A Request for Defense from Heaven! The Final Battle" "I will soon be gone from this world. That’s why I want to entrust Anna, the only person I have any regrets about, to Hajime." Hajime (Maeda Gouki) couldn’t secure a divorce for his sister Kaede before she passed away. With his suspension lifted, Hajime now confronts Owari to fulfill his late sister’s final wish! However, taking Anna away from Owari, who has legal custody, is an incredibly difficult task—past cases suggest it’s nearly impossible. With no other options, detective Kai takes the advice of his assistant Aono: “If you’re going to fight, you must first know your enemy.” He begins questioning residents near Owari’s family home to uncover his past. Meanwhile, Hajime infiltrates lectures and gathers clues that might help in the fight against Owari. He entrusts Anna with something important and heads into the final battle! What will the outcome be…?!