Tokyo Mew Mew Olé!

Aoi Shibuya is a high school boy in Tokyo who is merged with the DNA of the Iriomote Wild Cat (the same animal for the original's protagonist Ichigo Momomiya) and given the power to transform into "Mew Mew." Although he has had no wishes to become a hero, he decides to transform to protect the future of all animals on the earth.

(Source: Crunchyroll, edited)