Question: Summer Days is an erotic visual novel developed by 0verflow, released on June 23, 2006 for Windows and later ported as a DVD game and for the PlayStation Portable (PSP), It is the second installation of "School Days" line of series, succeeding the visual novel of the same name and preceding "Cross Days", a Japanese erotic visual novel developed by 0verflow, released on which date?
Sentence (from "Cross Days"): Though the game requires little interaction from users, "Cross Days" engages the player through a nonlinear plot that they are given opportunities to change the course of during play.
Relevant evidence: No