Where's My Huge Son?

Miss Randou crossed oceans to work in a foreign port. She has no boyfriend and no hand warmer. The only one who brings her warmth is the child she has raised for years. Her company may have its problems, but at least her kid is still someone his "old dad" can be proud of. One day, she runs into a few "business rivals" from the company, and a little "trouble" ensues. Fortunately, nothing too serious happens... No, actually, it's pretty serious. Her kid doesn't recognize her anymore. Neither do her boss, coworkers, dining companions, or her son's annoying partner! Miss Randou: "No, you can't touch my hat and then try to take my kid too!" Pairing: Miss Ranpo and Mr. Fukuzawa My new novel, "[Crossover] Every Time I Come Home, My Wife Is in Another World," is quietly seeking advance favorites. I'm turning my attention to Mr. Mori, who always gets his partner stolen away... Miss Ranpo's original worldline. Theme: