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The mysterious black technology master and killer in the galaxy is assigned to protect the little loli school beauty! Any door? Bamboo dragonfly? Doraemon? These are all pediatrics, let you see what is the real black technology...

Ling Yeyu traveled to a different world of cultivating immortals. Ling Yemeng: "Brother, I'm really the system~" Ling Yeyu: "My sister is so cute, she can't be the system! '