Nobody told me this was a thing.
東出:ケイネスがライダーのマスターだったら絶対に上手くいかなかっ
たね。浮気は絶対にないだろうけど。
虚淵:浮気というか普通にもう両方抱いてやるの勢いだったと思うよ。
東出:そういえば両刀だった。
鋼屋:昔の人は両刀がわりと普通だからね。
Higashide: If Kayneth were Rider's master it wouldn't have worked out. But there wouldn't be any cheating*. (*as in Sola-Ui with Lancer)
Urobuchi: Not exactly cheating but I think [Rider] would basically go at it as if to fuck both of them.
Higashide: Oh yeah, he's bisexual.
Haganeya: Bisexuality was relatively normal for people of ancient times.