Ryosuke Ainouchi (Masahiro Sunada) is set to marry the very next day. Yet behind his seemingly perfect life, he is tormented by feelings of inferiority and doubt regarding his fiancée, Megumi (Moe Fujie). It is at this moment that the latest AI, ‘MIRA’, is activated. Drawing on vast amounts of data from smartphones and computers, MIRA uncovers Ryosuke’s ‘inner voice’. Confronted in a sealed room with brutally objective data, what will be the ‘ultimate choice’ he is led to make? This innovative, claustrophobic human drama will shake your values to the core.