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?

<P0-S0>  The story, a dramatic slice-of-life, follows the life of Yuuki Ashikaga, a high school student who becomes the ambivalent love-interest of two girls during his second term, and the effects this has on himself and his relationships with other characters. <P0-S1> Cross Days (クロスデイズ , Kurosu Deizu ) is a Japanese erotic visual novel developed by 0verflow, released on March 19, 2010 for Windows and later ported as a DVD game and for the PlayStation Portable (PSP). <P0-S2>  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. <P0-S3>  The game is the third installation of the "School Days" line of series, succeeding "Summer Days". <SEP> <P1-S0> Island Days (アイランドデイズ , Airando Deizu ) is a tower defense visual novel video game developed by Klon in collaboration with 0verflow for the Nintendo 3DS. <P1-S1>  It is a spin-off of 0verflow's "School Days" visual novel series, and was released in Japan on July 3, 2014. <P1-S2>  The opening theme is "Paradise (Past Plus Parallel)" by Kyōko Aihara. <SEP> <P2-S0> Summer Days (サマーデイズ , Samā Deizu ) 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). <P2-S1>  Unlike the previous titles, that exist in the same continuity however, "Summer Days" is a spin-off of the original story retold from the perspective of Setsuna Kiyoura, a high school student out for summer vacation who finds herself attracted to Makoto Itou, a classmate and fellow patron of a restaurant she eventually comes to work at. <P2-S2>  The game retains the anime-like presentation familiar to the franchise, requiring little interaction from users, engaging players through a nonlinear plot they are given opportunities to change, and concluding with an ending specific to the choices made during play. <P2-S3>  It is the second installation of "School Days" line of series, succeeding the visual novel of the same name and preceding "Cross Days". <SEP> <P3-S0> School Days (スクールデイズ , Sukūru Deizu ) is a Japanese visual novel developed by 0verflow, released on April 28, 2005 for Windows as an adult game. <P3-S1>  It was later ported as a DVD game and for the PlayStation 2 (PS2) and PlayStation Portable (PSP). <P3-S2>  The story, a dramatic slice-of-life, follows Makoto Ito, a high school student who becomes the ambivalent love-interest of several girls during his second term, and the effects this has on himself and his relationships with other characters. <P3-S3>  Though the game requires little interaction from users, "School Days" engages the player through a plot that they are given opportunities to change the course of during play. <P3-S4>  The game concludes with an ending specific to the outcome of the story, some of which became notorious for their graphic violence.