Akanesasu Sekai de Kimi to Utau (茜さすセカイでキミと詠う) or Reciting With You in the Glowing Red World is a Japanese smartphone app game produced by GCREST.

One day, after passing through a torii, you came to a dangerous world called Hinomoto. In Hinomoto, the sun doesn't rise anymore and the sky is always the depressing red color. In addition, this world is filled with evil spirits "Shikigami" which can make people disappear into thin air. As a Miko, you are the one and only person who can save this world. However, you're not alone on this journey......You'll meet a lot of mysterious Japanese historical figures and fight with them to make the sun return again. Also, you'll meet your destiny by choice. Are you ready to go?