Teenage Mutant Ninja Turtles, Season 4

Leonardo:
(Narrating) So the Ancient One took Yoshi and his friend into his home, and trained them in the ways of ninjitsu, and treated them as if they were his own sons. As they grew into young men, they became closer than brothers, best of friends who do everything together. They even fell in love at the same time, with the same girl - Tang Shen. They were crazy about her. Tang Shen was also an orphan raised by the Ancient One. It was her loving care that made the Ancient One's house into a home and that often brought unexpected visitors to her kitchen. But Tang Shen saw a hungry innocent creature and, as always, her first thought was to care for it. She decided to keep the curious rat as a pet. Seeing that Tang Shen had grown fond of the hungry little visitor, Yoshi had built a home for the newest member of their family. Although, Tang Shen had captured both the boys' hearts, it was clear that her heart belonged to only one of them - Yoshi.