Capriccio

あらすじ

High school student Sugatami Akira harbors an unrequited love for his classmate Kitajima Miyoko, but he is too shy to confess his feelings. Meanwhile, an alien space princess named Demelta C Bete Brumanto travels to Earth with a mission to spread her race across the galaxy. After Akira is accidentally knocked down, he finds himself inexplicably chained to a small, spiky ball. This ball transforms into a large, sentient sphere that introduces itself as Demelta. She reveals her intention to mate with Akira to propagate her species. When Akira, frustrated, grabs one of her spikes, Demelta transforms into a beautiful, humanoid girl. Despite her new form, Akira resists her advances, as he wishes to save himself for Miyoko. However, the unbreakable chain linking them will only be removed once Demelta becomes pregnant.