In the niche world of adult visual novels and simulation games, particularly those within the Netorare (NTR) genre, players often encounter complex mechanics that track emotional states, relationship decay, and narrative flags. Among community-crafted tools, the "NTR Night Chart" has emerged as a specific, unofficial framework used to analyze or plan gameplay during "night phases"—periods typically reserved for rest, secret meetings, or irreversible events. What is an NTR Night Chart? The "NTR Night Chart" is not an official feature found in any single game but rather a player-created analytical template. It functions as a timeline or flowchart that maps out the high-risk nocturnal segments of an NTR-themed game. In many such games (e.g., NTR Legend , Nightmare series, or custom RPG Maker titles), the night cycle is when the protagonist is asleep, vulnerable, or absent, allowing rival characters to initiate "stealing" events.