Ouji-sama no Hanryo wa Yuuutsu na Honey

His boyfriend cheated on him five times and he was fired from his job at a toxic company. Keiichiro's bad luck has reached its peak, and he has become desperate. There, he meets Kray, a beautiful tan-skinned man who looks at him with a passionate gaze as if he were his lover, and he is swept away into his dreamy arms. The next morning, Keiichiro comes to his senses and realizes that there is no way he could have been so lucky, and flees back to Japan, leaving Kray behind. However, Kray followed Keiichiro to Japan and suddenly proposed to him, saying, "I have missed you so much, my love!" Turns out, he is the fifth prince of the venerable Rasheed Kingdom. He immediately refuses his proposal, saying that he is no match for him, but Kray devotes himself to Keiichiro in an unfamiliar country, saying that he will give his love to him even if it takes his whole life...? (Source: Honbunsha, translated)