The war (Date) resumes. Itsuka Shidou's calm days returned without the need to preserve the Spirits from the constant combat days. The tranquil days were disrupted, however, by the appearance of a mystery sphere releasing a spiritual wave, as well as a mysterious girl who appeared at the same moment. What is her reason for keeping an eye on Shidou......? Shidou had been entrusted with a task in the midst of a stressful scenario. "Can you date all of the Spirits and make them fall in love?" ” With humanity's survival at risk, the war(date) continues!