A coming-of-age story set years after the original Perman series. As childhood heroes grow into adults, Mitsuo struggles to balance university, work, and the weight of being Earth's greatest protector. Meanwhile, Sumire Hoshino-the country's biggest star-finds herself drawn not to the legendary hero Perman, but to the ordinary boy behind the mask. A story about growing up, hidden feelings, and the people behind the heroes.