为了追查寻找神秘失踪又神秘现身的恋人慕寒，女主角洛檬进入慕寒制作开发的全感官沉浸式剧本杀游戏当中，谁料却因为意外进入了一个不可预测的超难剧本当中，为了通关游戏，更为了找到慕寒，洛檬在游戏中使出浑身解数决心改变游戏中自己必死的结局。

"Chiri" is the close observation of the end of the life of her foster mother, after she had turned 95. Following her mother's daily life as she lives out her time, steadily approaching death, Kawase contemplates the fundamental themes of her own film productions.