Echizen Ryoma... I'm back

Ryoma and Yuki had been friends ever since Yuki was left in front of their doorstep. They were always together for everything and they were both in love with each other. Until one day Yuki's relative went to Ryoma's house and ask to take her back. They two of them were all really sad. They promised each other that they were be in this relationship until they die and they will definitely be together again

Disclaimer: I don't own prince of tennis