XBlaze Lost :Memories is a Japanese visual novel developed by Arc System Works. It is part of the BlazBlue series and the sequel to XBlaze Code: Embryo. It stars Nine and Celica from BlazBlue: Chrono Phantasma in their childhood
"XBlaze Lost: Memories, a visual-novel game based in the BlazBlue universe and the sequel to XBlaze Code: Embryo"
"Play as the enigmatic pink-haired protagonist as she navigates through a weird and wondrous alternate reality with the help of the mysterious girl Nobody in order to save her sister, who disappeared into this unknown world! While there she is tasked with finding “Memory Fragments”, crystallized memories that not only serve as keys that will help her move on and find her sister, but also uncover the identity and story of the person those memories belong to!"
"Magister’s City Ishana—
The protagonist “Me” lives on the outskirts of the city of Ishana with her little sister in idyllic peace. However, that peace is shattered when “Me’s” sister disappears without a trace.
As panic begins to take a hold, “Me” starts running through increasingly more horrible scenarios in her mind. Was she kidnapped? Or is “that man” somehow behind it all? “That man” being their father, who performed dangerous experiments on his wife and eldest daughter without any explanation of his actions. Rushing to her father’s workshop only served to confirm her fears as the same strange azure light that appeared when her mother died once again was leaking through the cracks of the door…
After a single deep breath, “Me” opens the door and then–
–wakes up without her memories in the “Phantom Field”, a strange parallel world inhabited by a single person, the mysterious girl “Nobody”. It is from this point that the protagonist begins her quest to find her sister, her memories, and uncover the origin of the Phantom Field.
Who is “Nobody”?
What is the “Phantom Field”?
A new story of the “Azure” will be uncovered…"