茜さすセカイでキミと詠う is a free iPhone game developed by GCRESTInc. It is a romantic puzzle game set in a world where the sun no longer rises. Players embark on a journey to retrieve the sun, meeting the "Tsukuyomi Boys" along the way.

The game offers a main storyline that revolves around the quest to restore the sun, as well as individual character stories for each of the Tsukuyomi Boys. Players can level up and develop the boys to enjoy their unique stories. The choices made throughout the game can also impact the ending and the characters' outfits.

The gameplay features a simple and exhilarating match-three puzzle, where players match three or more orbs of the same attribute to launch attacks. Skills can be activated by tapping on the characters. The goal is to deliver the most powerful attacks possible.

茜さすセカイでキミと詠う boasts an impressive cast of over 70 voice actors, providing a high-quality audio experience.

The game is recommended for fans of romance simulation games, otome games, and games with historical and Japanese themes. It offers an opportunity to enjoy a unique blend of romance, puzzle, and Japanese culture.