Kamen Rider Den-O Episode 46

After seeing a horrific moment in time in his attempt to learn the truth, Ryotaro becomes confused and becomes upset about Airi until Yuto restrains him, revealing that this is the past and brings Ryotaro back to the DenLiner to reflect on how his memory saved Airi and Sakurai and restored the present. Meanwhile, as Kai needs to find Ryotaro before his condition gets worse, Deneb tells Yuto how he made his contract with Sakurai and his intention to fight for Yuto to the very end.