Volume 1 Synopsis: Mai has always idolized her perfect older stepbrother, and ever since she was little she's dreamed of marrying him someday — reasoning that since they're not blood-related, there's nothing stopping her.
Then one day, she suddenly remembers something terrifying: her brother is actually a character from a death-game manga, and one year from now he will orchestrate a deadly game involving his classmates — and kill his own sister, Mai, in the process.
Drawing on a line from the ma...
