Around this time last year… a game came out… called 9-nine- Kokonotsu Kokonoka Kokonoiro. I didn’t rate it highly back then, because honestly there wasn’t much to rate. The story barely moved at all, it just laid out the setting. That game was really just the start of a series. 9nine is a project sold in volumes, and my initial guess is there are three heroines, one volume each, so at least three volumes total. I already talked about the first volume here: the protagonist gets dragged into a battle between espers. There are villainous espers, and righteous ones like the protagonist and heroine. Some people kill, and someone else stops them, that kind of thing… Except in the first volume the esper murderer was never unmasked at all. It just ended unresolved, so a year later the second volume shows up again. The main romanceable character in volume two is the protagonist’s little sister: Niimi Sora (新海天), so the title changed to something built around her name, Sorairo Sorauta Soranooto.