Ultraman: A Career That Begins as a Stand-In

Lin Ze transmigrates to Earth in the Ultraman universe and becomes a young salesman. Just as he's despairing at the thought that he'll be the first transmigrator to live an ordinary life, the Ultraman Substitution System comes online! He can travel to various parallel Ultraman universes, accept orders across different timelines, and fight in place of the Ultra Warriors in those worlds. Completing orders earns him all kinds of skills! He can even eventually ascend into light! Ding! Order complete: Fight Gatanothor in Daigu's place! Reward: Dark Tiga transformation device! Ding! Order complete: Battle on Black Tide Island. Log in as Leo and fight in his place! Reward: Leo Kick! Ding! Order complete: Take Agul's place in punishing humanity! Reward: ... Daigu: You really are something, Lin Ze. You finished that in no time! Jun Himeya: You can still turn the tables after the lights go out. You're a real man! Asakura Riku: I owe it all to Senior Lin Ze. Otherwise, I would've had to kill Belial with my own hands! Kengo Manaka: You're the real general! Fighting nonstop for a whole week without a break, that's brutal! As the praise keeps pouring in, Lin Ze's orders begin piling up. Lin Ze: I'll never get it all done. There's just no way! The making of the strongest salesman across all worlds begins in the Ultraman Z universe! P.S. Other worlds will appear along the way, but the focus is mainly on the Ultraman universe. Tentatively planned: Kamen Rider, Super Beasts, Soul Land, Battle Through the Heavens...