It’s a shame that Gotham Academy #7 seems to be a one-off because there is so much potential for Damian as a regular member of the cast. If you’re looking to get into Gotham Academy, this probably isn’t the place. The impetus for the story and the emotional beats rely on a familiarity with the characters that isn’t established here. You should go pick up the first six issues (and the excellent Endgame tie-in), and then race your way back. Because it’s well worth it.
Over the years, a variety of comics creators (Scott Snyder and Kyle Higgins most recently) have developed the setting and history of Gotham to make it a place where stories not involving the Caped Crusader can be told. One of these stories is Gotham Academy, a mix between a high school slice of life story and an old fashioned Gothic mystery. (One of the main characters is even called Heathcliff.) Gotham Academy #4 involves the series’ leads, the enigmatic second-year Olive and the nerdy first-year Maps, trying to decipher an esoteric symbol while trying to find out who the school’s ghostly intruder is.