Centuries ago, desire led to the emergence of the Mana ecosystem, which nearly eradicated humanity. Humans swiftly became targets, civilization collapsed, and the atmosphere of suspicion and fear during the apocalypse deepened the divide among individuals. Confronted with calamity, people slowly came to understand that emotions – once deemed taboo by the lighthouse – have now transformed into the most powerful connection to overcome all barriers and establish a community with a common future. Will the survivors, who have been thrust into a dire predicament, be able to reclaim their future?