Manga by author Azuma Mario

Under orders from her organization, Celeste becomes the personal bodyguard to Edward, Crown Prince of the Kingdom of Midland. As they spend time together, she comes to see both his strength and vulnerabilityand chooses of her own will to protect him.Edward, too, trains his body and mind so he can protect her in return."You're the only one I'll ever love."Despite the growing affection between them as they overcome hardship after hardship, the unbridgeable gap between a prince and a mere guard looms largeA story of two souls burdened by duty and past scarsof growth, battles, and an unwavering love.