Mashin Creator Wataru(2025)

Mashin Creator Wataru is a Japanese animated series following Wataru Hoshibe, a fourth-grade elementary student and aspiring RyuTuber who dreams of becoming a superstar. When Wataru constructs Ryujinmaru, a powerful Mashin (mechanical being) from blocks, he's transported into the Chubukai parallel world. There, Wataru and his creation must face off against Enjoda, the final boss threatening the realm. The series blends adventure and action as Wataru discovers that his block-building skills hold the key to saving this mysterious world while pursuing his dreams of online fame and stardom.