After Tsukasa suddenly loses his powers, he learns from Kaito that he is actually in the World of Negatives. He later is seen by a talent agent and is offered to be signed onto his agency to become an idol. Although Yusuke acts as the voice of reason, he gets caught up in the fame-seeking as well. Meanwhile, after her school friends return while waiting for Chinatsu, Natsumi suggests that they should dig up the "treasure" they buried together, ...