鬼神之域：青年薩滿第

誓言的秘密為該系列的第三單元，本單元講述了一對青年男女的故事，故事題材很新穎，講述的是兩位好朋友TER與FANG之間的誓言，主人公TER與FANG是很要好的朋友，漸漸初生情愫，兩人因此決定交往並立下誓言說：“倘若雙方不再想愛了，希望我們仍然能夠像現在這樣做個無話不說的好朋友。”隨著時間的推移，兩人的感情越來越淡。但是當初許下的誓言卻成為兩人之間無法推倒的城牆，兩個人的關係到底如何發展呢？這個誓言到底存在著什麼秘密呢？

A cohabitation comedy about a ghost of a high school girl who has been dead for 5 years and an exorcist college boy with the ability to see and hear ghosts. What he’s discovered over the years is that he can touch them and fight them off, so when he’s in need of a part-time job and can’t find one that pays well enough, he starts putting ads online as an exorcist for hire. His ad: Will face off with your ghosts. Chances of winning: virgin ghosts 80%, bachelor ghosts 40%, child ghosts 97%, the rest 50%. One night he goes out on the job and faces off with a schoolgirl ghost, and during the fight, they accidentally kiss and sparks fly.