Konosuba - God's Blessing on This Wonderful World! Vol 9

From the Yen Press edition

After escaping a tense one-on-one situation with Megumin, Kazuma’s thrown right back into the fire when the Demon King’s army attacks! Up against Sylvia, one of the army’s fearsome generals, he doesn’t stand a chance! However, once she’s taken him hostage, he’s all too happy to remain tied up with her. That sentiment won’t last very long, though…

Source: Yen Press