The Train World is having a busy period, building railroads between continents. The Intercontinental Railroad constru...

Duke returns to the Train World and lies to everyone that Kay is lost due to an unfortunate accident. But Kay also ma...

After a long rest, Kay wakes up, clueless to who or where he is. Confused, Kay leaves his base and arrives at the Fou...

As the power of the Train World becomes weaker, viruses spring up and begin to infect the inhabitants. If infected, t...

A virus enters the system in Area D, and the area's control unit malfunctions. To fix the problem, Kay has to run fas...

After Kay gets his upgrade with Experience Points from completing the Area D restoration task, he decides to reopen t...

After using all his energy while opening the tunnel to the Mountain Area, Kay collapses as he barely makes it there. ...

When the avalanche starts to fall, Alf, Jeffrey, Selly and Duck quickly search for ways to protect the Mountain Area....

Through various experiences, Kay successfully continues to receive upgrades. Feeling good and confident, he goes to t...

Kay decides to train harder after finding out that he needs more experience points to earn higher level upgrades and ...

Kay loses control over his units because his units received upgrades after special training. He needs extra training ...

Kay finds out that Alf has been training hard in the early mornings. He follows Alf to the Mountain Area and sees him...

Everyone needs more training to open the connecting tunnel to Area V so Selly installs a virtual simulation program t...

Duke in the virtual space is unimaginably strong. After losing connection with Selly, Kay, Alf and Duck are completel...

The Train World is downgraded from Kay's setback and the Area V, which requires a large amount of energy to be opened...

Kay and Alf tie with eleven cargos each, which they have received from helping other trains. With Kay's Base as the l...

It's the day of the opening ceremony for Kay to finally open the tunnel to Area V. Everyone is in the festive mood, b...

Kay and his friends battle against Duke. Even after Alf ties Duke up, Duck shoots his water guns at him and Selly use...

To make matters worse after all his friends have fallen, Kay's vision sensor is broken. Jeffrey tries to fight off Du...

As the tunnel to Area V reopens, Victor is back. Victor visits the gatekeepers of each area who are his old students....

Kay listens to Stella's story about the primordial train called the Alpha Train. Stella warns Kay that soon, darkness...

Kay and his friends realize that Duke has acted strangely because of a virus. To treat Duke, Kay and the gang must lo...

While Kay and his friends are searching for the virus inside Duke's memories, they find Duke's memory of the day befo...

Duke finally comes back to the Fountain Plaza after his recovery, but everyone is still scared of him. Kay asks Duke ...

Kay loses control of his engine and starts to run too fast, causing space-time to warp and twist. Kay visits the Foun...

Kay arrives at the Central, but the atmosphere is somewhat different than before. His friends act weird and seem to b...

Due to the prolonged isolation period, Area V's energy level is unstable, and the snow starts melting, causing the Ic...

Everyone safely makes it to Victor's Base. There, Selly connects Victor's engine with Kay's while repairing Victor. M...

One morning, a train is found thrown off the track, all out energy. While everyone watches him worriedly, the train w...

Duke's duplicates show up in the Fountain Plaza. It turns out the virus has duplicated Duke while it was invading Duk...

While fighting Duke's duplicates, Kay and his friends realize something odd. Even though the engines of the Duke's du...

All the trains evacuate to Area V, and the Robot Trains block the tunnel that connects to the Fountain Plaza. But Duk...