Making a friend like Hikaru is one of the best things that has ever happened to Sai. Once he also meets Touya Akira, his life could be perfect – if only he could convince his parents to allow him to become a pro go player. But he'll need the support of all his friends when he discovers something that has been kept secret from him his entire life. (intersex Sai who's Hikaru's age)
Back in the Heian age young Sai has come to the court, but she has a secret she mustn't let the others find out. My fic for Blind Go round 16, where the theme was genderswap.