Arihisa takes a job at an evil organization because the health insurance is better than starving. The premise is absurd, but the show commits to it completely, henchmen clocking in for shifts, filing paperwork between villain attacks, worrying about overtime pay while actual heroes try to kill them. It's a comedy that understands the economics of villainy better than most shows understand their own plots, turning the gap between "working a job" and "dying for a cause you don't believe in" into something genuinely funny. The romance sneaks up on you because it grows from the mundane: two people showing up to the same terrible workplace, doing terrible work together, learning they can survive it. Nobody talks about this one.
Arihisa Aokura needs money, both to keep himself afloat and to provide for the orphans he treats as family. While searching online for work, he comes across a part-time listing from an "evil organization" that offers generous pay and benefits. He decides to go to the interview and, somewhat unexpectedly, gets the job: he is now a henchman for the villainous group Antares. From then on he is sent on missions against heroes, and he has to survive them while still supporting his orphan brothers and sisters. The show is an action comedy with some romance.