The night before Christmas, a terrorist group hacks every network in the city using a powerful video — achieving total digital lockdown — and occupies the high school, taking the students hostage. Among the female hostages are three girls the protagonist knows: Emi Sanokura, Kaho Shimizu, and Yuka Okano — the same three from the first Noël game. The protagonist is positioned to respond, and the clock on Christmas Eve is running.