Promin Railmin
Railmin is a character in Kamiwaza Wanda and a Promin. His attribute is Buruburu.



Railmin is blue with cyan arms, blue ring-shaped hands, 2 round, orange shoulders, a blue appendix, a cyan face and red markings.

For his Bugmin ego, see: Bug-Railmin

As a Bugmin, when he opens his mouth, his teeth are always shown.


Railmin is a happy Promin who loves trains. When Railmin makes a noise, he says 'Shinko' or 'Batao-Batao'. However, when Railmin sees or comes into contact with any of Zuzumin's droplings or anything like them, he says 'Unko' or 'Reishi' instead.



Railmin's Kamiwaza ability is to give anyone a train ride. As a Bugmin, he can set up a railway rollercoaster.

In the series

Kamiwaza Wanda

Railmin made his first camero appearance as a Bugmin in the beginning of episode 1.

Railmin's major role debut as a Bugmin was in episode 4 when he took both Wanda and Shuu on a railway rollercoaster. That was until Zuzumin stopped him with his droplings. Yuto then captures and debugs Bug-Railmin. Later, as his Promin-self, Railmin gave Yuto and his friends a train ride across the meadowy hills.

In episode 10, Yuto summoned Railmin in order to help his father, his sister Yui and his 2 friends Mirai and Shuu look for Wanda.

In episode 12, Railmin gives Yuto, his sister Yui and his 2 friends Mirai and Shuu a train ride whilst chasing down Wanda and Turbomin with help from the other Promins that Yuto has so far.

Railmin became Mirai's Promin buddy in episode 44 as Yuto passes him to her. Mirai uses Railmin to help her chase down Bug-Turbomin and Bug-Jetmin.




  • Railmin resembles steam trains and subway trains.


  • Railmin has a dislike on Zuzumin's droplings and anything like them.
  • Railmin's name comes from the word 'rail' which is a type of track that diesel trains, steam trains, subway trains and bullet trains all travel on.
  • Railmin is also known for bringing other Promins in a Promin-Train with Railmin himself leading the way. In a Promin-Zu minisode on episode 4, 3 of the Promins, Turbomin, Tonkmin and Zuzumin, went separate ways without leaving Railmin's Promin-Train, causing it to end in a catastrophie.