The "1 & 2" in your query likely refers to the two-part anime adaptation (OVA) based on the game. Мой Мир Episode 1:

: Explicitly 18+ due to its adult-oriented bondage and erotic content, which features optical censoring typical of Japanese releases. Critical Perspective

: Inhabitants are forced to serve their master, and failing to perform duties or training tasks leads to severe consequences. As the training progresses, Yuu begins to piece together her fragmented past. Key Features Training Mechanics

If you’re serious about playing Shinsou no Reijoutachi 1 & 2: