After lan said those words, Miya continued to tell the story, and then Ian went around Saki and Eira pat their by counting game. Until now, the conflict had not yet happened, but then Miya repeatedly asked Saki to move, the conflict happened ,and by this time Eira was right next to Saki, LAN and Eunice were close to them, so the three of them just happened to witness Miya did hit Saki head. It also links the fact that Miya told me that lan had pat Saki and Eira heads.