メルトコンプレックス 相容れない二つの世界 is a unique fantasy romance game set in two contrasting worlds. The story revolves around the perspectives of two sisters, Mel and Luna, as they navigate their complicated love lives.

In the prologue, Mel, a second-year high school student, meets Shu after receiving a mysterious present in the student council room. As Mel becomes more drawn to Shu, strange things start happening to their memories, particularly after a holiday visit to Shu's house with their childhood friend Tsukito. Each of them remembers the holiday differently, and it turns out to be the day Mel and Shu started dating. Doubting her own memories, Mel seeks help from her junior, Atsumu, and together they venture into the world of the next-generation brain game called "Neverland," where they switch their consciousness with AI and search for clues about Shu and Tsukito's whereabouts.

The game offers a variety of facial expressions for the characters, making the conversations and storytelling more engaging. Additionally, readers can unlock exclusive chapters on a weekly basis, providing a sense of anticipation for the next installment.

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