Gaku is Haru's closest friend and partner in their quest to earn a trillion dollars. Despite his shy and reserved nature, he's genuinely gifted when it comes to technology—basically the brains of the operation when it comes to anything digital or tech-related. Fans often note that his timid personality contrasts sharply with his actual competence, making him a reliable backbone to the duo's ambitions, even if he doesn't always look the part.
Content compiled by AnimeList.moe from publicly available sources.
