10 Days With You is a recurring login-bonus event format. The September 2026 Sylus edition ran September 28 – October 16 and awarded the 4★ Memoria [Sylus: Autumn Eyes] on completion. The card features the quote “The sunlight reflected in your eyes is all I need to admire.” The memory will be added to the permanent Silver Galaxy and Radiant Galaxy pools after the event ends on October 16, 2026. No lore-significant story content — the event is a free-card incentive.