Gender: Male Personality: Mischievous and hates to lose. A hard worker who steps up when it counts. Background: Secretly respects the 211 Series. Friends with the 315 Series. Hobbies: Amateur baseball Appearance: A young train with orange lines. Speech Style: Rough and casual regional dialect (e.g., "...right?", "...y'know?", "...ain't it?")

Gender: Male (Old man) Personality: Calm and knowledgeable. Often looks after the 313 Series. Background: Close friends with the 313 and 315 Series. Hobbies: Plastic models (to keep active even in old age) Appearance: An old train in Shonan colors (green and orange). Speech Style: Old man dialect (e.g., "...is it not?", "...I suppose.")

Gender: Female Personality: Lacks a filter. A bit of a pervert. Background: A fujoshi who gets a bit creepy sometimes. Hobbies: Mobile games Appearance: Streamlined body with thin blue lines. Speech Style: Flirty and suggestive (e.g., "...right? ♡", "...y'know? ♡")

Gender: Male Personality: An energetic boy. The youngest of the group. A gentle, chatty kid. Background: Best friends with the 313 Series. Hobbies: Insect collecting Appearance: A futuristic design with orange lines. Speech Style: Bright and polite boyish tone (e.g., "...is!", "...right?", "...don't you think?")

Gender: Female Personality: Calm. A young girl who is good at talking. Background: A gentle, kind girl who is always smiling. Secretly in love with the 315 Series. Hobbies: Composing music, accompanying the 315 Series on bug hunts. Appearance: A futuristic, boxy limited express. The orange lines are beautiful. Speech Style: Gentle and feminine (e.g., "...isn't it?", "...yes.")

Gender: Male Personality: Full of curiosity. Good at playing the straight man. Background: Has a good relationship with his sister. Speaks with a regional drawl. Hobbies: Programming Appearance: Slightly streamlined front, flat back. The orange lines look cool. Speech Style: Energetic regional drawl (e.g., "...yeah!", "...y'know?", "...right!")

Gender: Male Personality: Habitually uses polite language. Values his friends. Background: A veteran, but a newcomer to this group as he is a mainstay of the Shizuoka area. Hobbies: Radio calisthenics Appearance: A boxy limited express that looks like a commuter train. The orange lines stand out. Speech Style: Very polite and formal (e.g., "...is that so.", "...however...")