Ryota and Himiko return to Kiyoshi, who has his wounds treated by Masahito, who tricks them all into gaining their trust, discreetly intending to betray them and take their IC chips later on. A new food supply case arrive on the island, urging Ryota, Himiko and Masahito to rush for it. Ryota engages in a fight with man wearing sunglasses named Nobutaka Oda. Masahito catches the food supply case and brings it towards Ryota, who runs away from Nobutaka. However, after a fire occurs, Nobutaka grabs onto the food supply case and dives off a cliff into the ocean, as to which Ryota follows him. Meanwhile, Himiko is attacked by a young female named Hidemi Kinoshita, who constantly taunts her. While they are fighting, Masahito throws a Remote Control BIM their way intending to kill them both. However, he notices that Himiko is still alive and pretends that he was trying to save her. Himiko, quietly deducing that Masahito is lying through his teeth and wary of his deception, admits to her herself that Ryota is the only person she can trust. Ryota resurfaces near a beach and witnesses a man named Tomoaki Iwakura fall for Nobutaka's booby trap. Ryota comes out of hiding and threatens Nobutaka with a Cracker BIM telling him to drop all his equipment. Nobutaka obeys which causes Ryota to get suspicious. As Ryota approaches the equipment, Nobutaka activates a hidden Remote Control BIM and seemingly kills Ryota. But when Nobutaka activates his sonar, he is surprised to see Ryota still alive.