The truth of "a man who just wants to be a paco" and "a 'overprotected' girl" that can be seen only by voyeurism. Chika is 22 years old. "I've been protecting my younger brother!" The older sister, who has a strong sense of responsibility, is guided to the bed and "what is the purpose?" Backfire! "It's been 500 million years!" Resists with a mysterious humility, but "Hmm!"