Gaku Yashiro is a prominent character in the anime and manga series Kakegurui. He serves as a key figure within the Hyakkaou Private Academy, where high-stakes gambling determines social status among students. Yashiro is known for his strategic thinking and ability to manipulate situations to his advantage. In the series, Yashiro often acts as a mentor and advisor to other characters, guiding them through the complexities of the gambling world. His insights and experience make him a valuable ally, while his unpredictable nature adds tension to the storyline.