A middle-aged man who fixes things becomes the most valuable person in a fantasy party precisely because nobody else thought to bring a handyman. Saitou doesn't swing a sword or cast spells, he unclogs drains and repairs broken equipment, and the show commits entirely to the bit: that mundane competence saves lives more reliably than magic. The real hit is watching someone ordinary finally understand that being useful doesn't require being special, just present and willing to work.
Saitou has spent his entire life as an ordinary handyman in Tokyo, fixing things and helping people without ever standing out. One moment he's installing a doorknob. The next, he wakes up in a medieval fantasy world with absolutely no explanation. Instead of panicking, he does what he does best: he helps. He teams up with a self-assured warrior, a wizard whose memory constantly fails her, and a fairy princess searching for her way home. They're strong and skilled, but none of them can patch a roof or repair broken equipment. Saitou quickly discovers that practical ingenuity matters just as much as swordplay and magic when survival is on the line. What starts as accidental adventure becomes something deeper as his mundane skills prove unexpectedly vital to the group's survival. For once, being ordinary isn't a liability. In a world of heroes and legends, sometimes all you need is someone who knows how to fix things.