Horikawa Kunihiro has disappeared from the Second Unit. In order to pursue Ryoma, who left the Satsuma Residence earlier than what was recorded in history, the Second Unit splits up to pursue Ryoma and find Horikawa. Izuminokami and Mutsunokami head to the Satsuma Residence, which is up in flames due to the distortion in history. Horikawa also shows up with a new determination. How will Izuminokami respond to Horikawa… (thetvdb.com)