Two girls who love each other in silence are forced into a war they didn't choose, piloting mecha that run on shrine maiden magic. The show knows exactly what it's doing when it makes their bond the only thing that works, the only weapon that matters. Chikane's aloofness isn't coldness, it's a girl protecting the one person she loves by keeping her at arm's length, right up until the moment that strategy shatters completely. The pacing stumbles in the back half and the ending divides people hard. Watch it for what happens when a girl realizes the distance she created was cruelty, and her partner has to decide if love survives that truth.

Chikane carries herself with aristocratic grace, distant and composed. Himeko is devoted to her, and the two are secretly friends despite being opposites: one shy and unsure, the other bold and elegant. They attend a prestigious academy in Mahoroba, a quiet village surrounded by nature, alongside Himeko's sincere but reserved childhood friend Souma. On the birthday the girls share, a dark moon blots out the sun, the Orochi rise to destroy the world, and a sinister voice turns one of their friends against them. Dormant powers of the Sun and Moon shrine maidens awaken in the pair, but more threats follow, some from those closest to them. Romance and drama sit alongside giant robot battles.