I Transmigrated into the Flower Fairy World and Used Science to Suppress Them

A middle school student transmigrates to the world of Flower Angel and becomes Princess Alia, younger sister of Kuku Lu, the prince of the Ancient Spirit Fairy Clan. She comes equipped with a "Straight-A Student System" that makes her stronger by reading books, a "Strongest Technology System" that progresses from Level One all the way to a god-level civilization, and a "Strongest Entertainment System" for singing. At first, Alia only wants to be a lazy little baby, two or three years old, while watching her academically hopeless brother Kuku Lu get sent to Earth to collect the Flower Code. But the System's missions force her hand, and she also has to protect her foolish brother from being toyed to death by the villains, so she is forced to get to work. On Earth, she appears to be a genius little singer who takes the internet by storm, while secretly she is a mad scientist who builds planet-destroying warships by hand and invents quantum magic. When Yajia and the forces of darkness try to destroy the world with magic, Alia simply brings out two-dimensional foil and a space battleship. With her irresistibly catchy songs spreading throughout the universe, she leads the magical world into the age of god-level civilization and finally achieves true freedom to slack off.