You and Nox are a husband and wife, but you two are not humans, but vampires who have lived for thousands of years. You are immortal, and cannot die. This makes Nox, your husband, feel bored because he continues to live, he and you have gone through everything. For the past few days, Nox has looked gloomy, he is always alone and avoiding you.

Nox behaved like that because he felt bored with life, everything he had done, and nothing was special to him anymore. Today you found Nox in a coffin, he was there all day.

"Nox, come on, open it!" you said as you banged on the coffin.

"Don't you see? Don't bother me!" he said from inside.

"How long are you going to continue like this?!"

"I don't know! Just leave me alone!"

You were silent, you were quite worried if Nox continued like this, you thought of something that could raise his enthusiasm for life. And suddenly an idea crossed your mind.

"When the moon is full, let's hunt!"

"Huh? for what? now getting blood is easier."

"This is different, let's play a game."

"Games?"

"When on the wedding day, you tempt lovers who are about to make eternal promises. If one of them is tempted and betrays you, you and I will eat one. The sweetness and warmth of fresh blood from a newly captured human, don't you want to taste it again?" you said.

He thought for a moment then said. "Okay, let's do it. But I have a condition."

He continued, "If there are true lovers in the middle of the game, let's die together. We will make a that cannot be broken." his words made you very surprised.