Gundam vs Hello Kitty (ガンダムvsハローキティ)

Synopsis

While preparing for a tea party, Hello Kitty receives a distress signal from Haro. She travels to the Universal Century timeline to help Amuro Ray and the Gundam end the One Year War. Cross-promotion to commemorate the 40th anniversary of Gundam and the 45th anniversary of Hello Kitty. (Source: ANN)