After visiting her deceased teacher's grave, a guy suddenly falling of the staircase where Asahi Sena ended up saving him. That guy, Itsuki Tobari turned out to be her deceased teacher's younger brother. They started to talk about things from the past, about the dead of Itsuki's sister and an 11-year-old boy who killed her, who was Sena's best friend. What happened to the boy who killed her now? Together, they start to find out what did actually happen during that tragic day.
Feb 13, 2016 to May 13, 2017
April 16, 2018
箱庭のソレイユ, Searching for the light in my little garden, Le Soleil dans le Jardin Miniature