is a Japanese tokusatsu drama and the 43rd entry of the Toei Company's long-running Super Sentai series. The series primarily aired in the Reiwa era, thus it is considered the first Reiwa era series as it aired the majority of its episodes during it. It is also the first and only Super Sentai series to date (as the franchise ended in February 2026) to utilize the motif of dragons, as well as the motif of knights.
It aired from March 17, 2019, to March 1, 2020, replacing Kaitou Sentai Lupinranger VS Keisatsu Sentai Patranger and Super Sentai Strongest Battle and was replaced by Mashin Sentai Kiramager. The program joining Kamen Rider Zi-O, later Kamen Rider Zero-One, in the Super Hero Time line-up on TV Asahi affiliate stations. Additionally, Ryusoulger began airing in South Korea in August 2019 as Power Rangers Dino Soul and its footage was adapted for Power Rangers Dino Fury.
The trademark for the series was filed by Toei Company on September 20, 2018.
was released in Japan on July 26, 2019, double-billed with '. Actors Shirà  Sano and Rie Kitahara portrayed the film's main antagonist, Valma, and Yuno respectively. In the film's storyline, the Ryusoulgers end up in the Mesozoic Era where they learn the truth of their ancestors' warlike nature as they are forced to fight them and Gaisoulg to save the future. The events of the movie take place between episodes 14 and 15. This is the first Reiwa era Super Sentai movie, released two months after the 2019 Japanese imperial transition.
was released in Japan on February 8, 2020, as part of . The film features a crossover between Ryusoulger and Kaitou Sentai Lupinranger VS Keisatsu Sentai Patranger, and was double billed with the prelude film for Mashin Sentai Kiramager. The events of the movie take place between episodes 40 and 41.
was released in Japan on February 20, 2021, as part of alongside Mashin Sentai Kiramager the Movie: Be-Bop Dream and Kikai Sentai Zenkaiger the Movie: Red Battle! All Sentai Great Assemble!!. The film is set between episodes 32 and 33 of the series, with guest actress Kanon Miyahara portraying a character called Maiko. The film's opening includes a dedication to Ui Tatsui's actress, Mana Kinjo, following her death in December 2020.
is a V-Cinema release that features a crossover between Ryusoulger and Mashin Sentai Kiramager. The V-Cinema received a limited theatrical release on April 29, 2021, followed by its DVD and Blu-ray release on August 4, 2021.
is a three-episode web-exclusive series released on Toei Tokusatsu Fan Club on October 17, 2021. The special serves as a prequel to the series with Masaya Kikawada, Jouji Shibue and Miyuu Sawai reprising their roles as Masters Red, Blue, and Pink respectively.