Rentetsu

 (れんてつ) is an Idol group whose members work for a fictive railway company named Consolidated Railway Co., Ltd. The group was formed in 2014 and opened its own izakaya (れんてつかふぇ) in 2015, in Akihabara.

The current line-up was unveiled on May 3, 2019.

Current

 * Hamaguchi Hanna (濱口ハンナ; )
 * Kijou Asama (軌条あさま; )
 * Koukasen Komachi (高架線こまち; )
 * Koukasen Hayabusa (高架線はやぶさ; )

Former Members

 * Kanzashi Komachi (簪こまち) joined in November 2014
 * Superview Odoriko (スーパービュー踊り子) joined in February 2015
 * Yusha Asahi (遊車あさひ) joined in February 2015
 * Shūdenki Nanatsu-hoshi (集電器ななつ星) joined in February 2015, graduated in March 2020
 * Wide View Hida (ワイドビュー飛騨) joined in February 2015
 * Wakasa Yakumo (若桜やくも) joined in September 2015
 * Multiple Tie Tamper Momo (マルチプルタイタンパーもも) joined in September 2015
 * Tenko Myū Sukai (点呼ミュースカイ) joined in September 2015
 * VVVF Haruka (VVVFはるか) joined in January 2016, graduated in October 2018
 * Tentetsuki Suzuran (転轍機すずらん) joined in April 2016
 * Makuragi Mizuho (枕木みずほ) joined in April 2016, graduated in March 2019
 * Seto Izumo (瀬戸いずも) joined in April 2016
 * Shima Shimakaze (志摩しまかぜ) joined in April 2016
 * Heigei Unten Hayabusa (併結運転はやぶさ) joined in May 2016
 * Renketsu-ki Nozomi (連結器のぞみ) joined in May 2016
 * Kamata Misaki (蒲田みさき) joined in December 2017
 * Tomeoki Brake Hibari ga (留置ブレーキひばりが) joined in May 2018, graduated in February 2019

Albums

 * 1) [2019.12.15] Rentetsu no Uta (れんてつのうた)

Singles

 * 1) [2020.06.07] railway girl/Yabai Onna (railway girl/やばい女)
 * 2) [2020.07.18] Eichinoyuuwaku/Kaburitsukitai (エイチノユウワク/かぶりつきたい)
 * 3) [2020.07.24] Kiseki no Diagram (奇跡のダイヤグラム)
 * 4) [2020.11.26] Santa ni Onegai (Santaにお願い)
 * 5) [2021.07.15] Ashita no Uta/Sakura (あしたのうた/桜)
 * 6) [2021.11.18] THE RAIL MASTER