Uno began his career at Machida Zelvia in 2022, helping them to promotion to the J1 League before joining Shimizu S-Pulse in 2024.
Gladbach's head of sports, Rouven Schröder, said: "Zento is a defensively minded, tactically disciplined midfielder who is strong in the tackle, covers plenty of ground and whose greatest strengths lie in his work off the ball. A move to the Bundesliga is the next step in his career, but also a demanding one.
