Sai's Sword Unsheathed (1) Hikaru no go : Season 1 Episode 25

HIkaru can't seem to get any better at Go, despite the fact that he plays with Sai every day. If he wants any chance to get into a tournament and face Akira, he needs to get stronger. Sai reveals the ultimate weakness of Hikaru, he's afraid of Sai, and every other opponent he faces.