Koezaru wa Akai Hana first launched for PC on September 7, 2012 in Japan. A PSP port titled Koezaru wa Akai Hana: Taiga wa Mirai o Tsumugu was released on March 20, 2014, followed by a PS Vita port titled Koezaru wa Akai Hana: Koi wa Tsuki ni Michibikaeru on June 23, 2016 and an enhanced PC version titled Koezaru wa Akai Hana: Itoshiki Hibi wa Mune ni Tsudoite on October 31, 2017.

The Crimson Flower that Divides: Lunar Coupling is a port of the PS Vita version with new elements supervised by the original staff, including:

• Newly written after stories for each of the eight romanceable characters, including new event CG.
• New episodes depicted from the perspectives of the romanceable characters have been added to the main story, revealing each character’s innermost self.
• Multilingual text support: English, Japanese, and Chinese (Simplified and Traditional). Voice-overs are Japanese-only.

Here is the story synopsis, via VNDB:

A land where women are scarce due to a fatal disease.

Naala, a girl who lives in the southern country Ruse, lost her only blood relative at a young age when her mother was stolen away by the Northern country Nasula.

The one who supported her was her adored “older brother” and childhood friend Olli, who was to be the next king.

Several years after that nightmarish night, Naala has been adopted by the royal family, and had begun passing her days peacefully as Olli’s fiancé.

However, the nightmare returns with an attack by Nasula’s army to steal women.

The time for a decision approaches.

Is being captured a future of subordination, or…

Visit the official website here.