"Gacha-sex" refers to a genre of adult content that involves characters or people in costumes, often based on popular anime or game series, engaging in sexual acts. The term "gacha" comes from the Japanese word ガチャ (Gacha), which is used to describe a vending machine or lottery system found in Japan where players spin a wheel or press a button to reveal a random prize.
In the context of adult content, Gacha-sex often involves characters or people dressed as popular anime or game series characters, and the focus is on their costumes and sexual acts. The Gacha element adds a sense of chance or randomness to the video's theme. These videos are usually targeted towards fans of specific anime or gaming franchises who enjoy seeing their favorite characters in a different, often sensual light.