It refers to a specific trope and subgenre in media where a romantic or deeply emotional relationship between two women is narrative-bound to end in tragedy, death, heartbreak, or forced separation.

Key Breakdown of the Terms
Yuri (百合): A Japanese term used in anime, manga, fiction, and pop culture to describe stories or media depicting romantic, emotional, or intimate relationships between women (women-loving-women / sapphic / lesbian content).

Doomed Yuri: A storytelling trope where the relationship is doomed from the start. Rather than achieving a “happily ever after,” the couple faces catastrophic obstacles—such as tragic deaths, time-loops, societal pressure, or fatal personal flaws—that prevent them from ever being together.