Sage is a former student at Haven Academy.
Sage is currently a student at Shade Academy.
Sage is a member of Team SSSN.
Sage is the leader of Team SSEA. He is described as being a bad leader by Scarlet David.
Folllowing the Fall of Beacon, Sage's relationship with Sun becomes strained, having now gone radio silent with each other. Sun feels as though there's an invisible wall between him and Scarlet and Sage.
At the end of the book, Sage bets that Sun would apologize for his behavior, and he is proven to be correct.
During the match with Team NDGO, after Neptune immediately runs up the mountain on the enemy team's side, Sage asks him what he is doing, exasperated. In RWBY: Before the Dawn, they are shown to have a good relationship.
In RWBY: Before the Dawn, they are shown to have a good relationship. While Scarlet sees Sage as a poor leader, he genuinely thinks of him as a great friend.