Synopsis: Today, I will be saved by the strongest man in the world. ~A serious champion of justice wants to expose the secrets of a science-minded girl~

"I will protect you with my life." Yukihara Aya , who works at the K University Medical Research Institute, is attacked by suspicious men on her way home. Just when she is in dire straits, an overwhelmingly strong man named Masatora Kagei comes to her rescue. Masatora is a highly skilled bodyguard dispatched by the government to protect Aya, and suddenly they begin living together! From now on, she'll be with a handsome man who fights from the moment she takes a bath until she goes to sleep... Does her job as a bodyguard include naughty things too!? When a hard-boiled, devoted, good-looking man (who is also the strongest man in the world) directs his passion straight at her, her body and soul are thrown into a frenzy...! A hard-boiled, dramatic love story between the strongest man in the world and a targeted science-minded girl!