Will You Keep This a Secret?
Show: Rail Wars! --> Season: 1 - Season 1
AirDate: 9/5/2014
Runtime: 24
Voting: 0 (0)

Overview: Prince Bernina of the small Mediterranean kingdom of Atella has arrived in Japan to attend a sister city ceremony in Sapporo, and the K4 members are appointed to guard and guide him on his way there. Naoto and the others are about to board the Hokutosei 3 at Ueno Station when Aoi contacts Naoto and tells him she's pursuing a suspicious man who was watching the platform.