I Want to Love You Till Your Dying Day Vol. 4 (Kodansha, 2025)

Uncontrollable grief grips Mimi after the loss of a beloved classmate in battle. Sheena's attempts to console her cause nothing but despair for both of them. Just when the tension threatens to break their bond of love, Sheena taps into a hidden power-an ability she happens to share with Mimi's mother. This magic has the potential to heal the wounds of war, but it comes at a cost. Will Sheena pay the price in order to protect Mimi?