yes! One of Kanata’s first moments of realizing her feelings for Hana was when Hana’s brother came over and joked that he was Hana’s bf. Then Kanata got the gay BSOD until Hana came in with the reboot and harsh words for her brother!
It’s from the first half I think late teens early twenties? But that could be off. He’s been mentioned a few times after too but I don’t Think he’s had a major appearance