The eldest son. The iconic face of Obakyu Railway. He carries passengers to the terminal every day. His favorite food is ramen.

The second son. A vehicle with a different gangway door position. His favorite plushie is a cat.

The third son. A train that has received various updates. He supposedly likes Guest, but it's unconfirmed. His favorite drink is tapioca milk tea.

The eldest daughter. The final production model of the 2000 series. Many things, including the driving equipment and interior, have changed. Her favorite drink is a caffè latte.

The younger sister of the 1st Batch. A vehicle that underwent major repairs by Hokuto Rolling Stock. She has a cool personality. Her favorite food is udon.

The 2-door renewed version of the 2000 series. Equipped with cross-seats throughout, she carries passengers to the terminal. She is a girl. Her hobby is posting photos of her handmade sweets on X.

The 5th batch of the 2000 series, specifically for the Imon Line. A boy who loves the forest. He is the younger brother of the Final Batch. He enjoys observing insects.

A 2000 series adapted for non-electrified sections. A girl who mainly runs on the Higane Line. Her favorite food is soba.

A big brother figure to the 2000 series, consisting of a 4-car set. He is a boy and a cousin to the three 2000 series brothers. His favorite snack is rice crackers.

The local rural version of the 2000 series. A single-car unit that mainly runs on the Imon Line alongside the 5th batch. He forms a duo with the Remodel car. (In the past, he operated as a 3-car set coupled with a 'Red Car'). He is a boy, and his favorite food is rice balls.