"It is said that the Queen of Death loves music," Serrault told Kai. "If you stand before the King and Queen of Death, and beguile them with your best piano, you may win a second chance for Amamiya-junior." An Orpheus and Eurydice story. Temporary character death. [Kai Ichinose x Shuhei Amamiya]

After Shuhei Amamiya is eliminated just before the finals of the International Chopin Competition, he lashes out at his friend and rival Kai Ichinose. Amamiya agonizes over how to apologize and his feelings for his rival. Follows roughly the same plot as the anime but a deeper dive into Amamiya's POV, plus some sweet and teary hugs. Post S2 E6 (E18 overall). [Amamiya x Kai]

Short and sweet One-Shot. Kai supports Ajino through a difficult decision. Possible spoilers for later chapters (depending on how good you are at predicting the inevitable)

Best friends Kai and Shuhei continue to venture in the world of music. But Shuhei keeps a secret... will he be able to fix his issues before others find out? (Takes place after Manga events. I tried my best to not add spoilers! :) )

Kai returns to Japan after years of living and studying abroad to compete in a Piano Concours. There he secretly hopes to meet up with a certain girl with whom he parted on a bad foot a few years before.