Toya enjoyed frequently teasing and making fun of his little sister. However, he did care about her a lot and was quick to defend Sakura when she was attacked by Syaoran in episode 8. He discovers the truth about Sakura being a Cardcaptor but doesn't let on about it and he tries his best to help Sakura when he can. Sakura also cares for her brother, for example when he got hurt by the Mirror card.