When a small planet called Earth gains rapidly in power and influence, a group of young aliens is sent to infiltrate human society until getting further instructions.
One decade later, they finally get their long-awaited but unexpected mission.
'Heist the entire planet.'
Cato, a young rookie lawyer with a genius mind, is one of those aliens who came to Earth years prior and built himself a stable life. But now, his smooth journey seemed to come to an abrupt end.
Reuniting with his old comrades, they now have to find a way to bring down humanity and take over the planet.
But when they dig deeper into the long-buried secrets of its rotten society, they notice that their mission is far from what they expected it to be.
View | Series | Vol | Chap | Extra | Group/Host |
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Sleeper Alien | 4 | 4 Plan | RoyalRoadL | |
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Sleeper Alien | 3 | 3 Reunion | RoyalRoadL | |
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Sleeper Alien | 2 | 2 Insectoid Boy | RoyalRoadL | |
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Sleeper Alien | 1 | 1 The Mission | RoyalRoadL |