Is It Really Necessary for a Burned-Out Office Worker to Transmigrate into a Shonen Manga?

Asagiri Akira was an ordinary office worker in every way except for his face. A man in a black suit carrying a briefcase, he was the sort of person you could see anywhere on the street. He had only been working for two years, but had already given up on his dreams and future. Every day, just managing not to be late took all his effort. Tokyo's morning rush-hour trains were packed like sardine cans. He had to work overtime now and then, and even accompany his section chief to drink with clients. He thought he would live like this until retirement, but it turned out life still had an even greater setback in store for him. On his way home from work, Asagiri Akira's vision went black. When he opened his eyes, some monster from who-knows-where was about to stuff him into its ugly mouth. What kind of gag manga would make an office worker transmigrate into a hot-blooded action manga?! And shouldn't some high school student be coming to save me right about now...? Oh, one really did show up. Synopsis unfinished Theme: Make the world a little more whole.