Second season of Bye Bye, Earth.

During a rash attempt to save her father and her dying home planet of Eltria, Kyrie Florian is betrayed by her childhood friend, Iris. Furthermore, the power Kyrie has gathered from Nanoha Takamachi and the other Earth protectors cannot be used to help her father. Iris casts the despairing Kyrie aside, having acquired what she desired to exact revenge on Yuri Eberwein, a powerful being who lies dormant on Earth. Left to pick up the pieces, Nanoha and her allies must confront the troublesome Iris to uncover the truth and stop the conflict between her and Yuri. However, amidst the raging battles, a much more dangerous threat lingers in the shadows. No matter the obstacle, Nanoha remains diligent and does not hesitate to help those in need with her magic.

Countries all over the world formed an alliance to counter the emerging enemy of mankind Neuroi, whom only girls with special powers could counter. However, the Neuroi never appeared. Instead of fighting, the witches spend their days idly. This time following not only unit 501, but also unit 502 known as Brave Witches! The 2nd volume of the comical daily drama of the witches who do not fight Neuroi begins! (Source: MAL News)

Di Gi Charat (a.k.a. Dejiko) - along with Petit Charat (a.k.a. Puchiko) and Gema - travels to Earth as part of her training to become a full-fledged princess. They crash on a small town in Japan, where they meet the Omocha brothers (who spend most of their time thinking how cute Puchiko is) and Mr. & Mrs. Ankoro (an elderly couple that makes Japanese sweets). (Source: ANN)