Ep. 13: Manabu encounters a childhood friend on the 777 Express before an alien attack.

Manabu inadvertently boards the 777 Express train, where he unexpectedly meets a friend from his past. The reunion is brief, as the pair has little opportunity to catch up before the vehicle comes under assault. Aliens originating from a different dimension launch an attack on the train, interrupting their conversation and forcing the passengers to confront this sudden extraterrestrial threat while aboard the moving transport.

▶ Watch on Crunchyroll