The romance setup lands because it's genuinely weird, saving the world by taking a spirit girl on a date is absurd enough that the show commits to the absurdity instead of apologizing for it. Season two introduces the twins and the inverse spirit, which means new dynamics that actually complicate Shido's relationships instead of just adding more girls to the roster. The action sequences have weight because they're interruptions to the dating, not the other way around.

Shido Itsuka, a student at Raizen High, has already sealed the powers of three Spirits, otherworldly beings whose arrival triggers destructive spatial quakes. He now shares a home with Tohka and Yoshino, since keeping them happy is the safest way to prevent disaster, and their powers stay sealed only while they remain emotionally stable. Working with the organization Ratatoskr, he keeps tracking down new Spirits and going on risky dates with them, because he alone can seal their power and save them from a life of fear, isolation and combat. This time, though, a more imposing threat seems to have noticed what Shido and his allies are doing. The second season mixes comedy, romance and ecchi humor with sci-fi action.