Satou actually wants to be there, which is the entire difference, he's not stumbling into a harem, he's chasing one woman so hard he crashes her wedding and commits to becoming a literal god. The romance runs the whole show instead of decorating it, so even when the ecchi chickens out, the story keeps moving because what matters is watching him actually try to deserve her. A guy who looks at the girl he loves and thinks "I'll become a king for you" instead of just hoping something happens.

Satou is a high school boy who has long been in love with his best friend Hime, a princess who came to Japan from another world. When she heads back to her own realm to be married, he does not hesitate: he follows her through the portal and bursts into the ceremony. A monster attack throws the wedding into chaos, and with a kiss and an exchange of rings, Hime makes Satou her new groom. That choice makes him the Ring King, a hero of immense power destined to save the world. The title comes with duties Satou never expected, including marrying four more princesses to gain new powers for the fight against the Abyss King. The result is a fantasy romance adventure mixing comedy and ecchi, adapted from a manga.