what is uid

UID: 200000081371511
server id: s303,shikagami dance
character name: Vicrost

Most unforgettable moment: When i got my first rare in sage naruto treasure and end up getting sage naruto himself. Next day, i opened five kage treasure and got my second rare, mei terumi. people from my group were congratulating me and some people were jealous because they never got mei.