Six thousand years ago, mankind's glorious reign ended as a result of an invasion of the demon race, brought about by the emergence of 72 demon gods. To safeguard the remnants of humanity, the Alliance of Temples appeared to stop the demons' progress and temporarily stabilize the situation. At present, nine-year-old Long Hao Chen is training to become a part of the Knight Temple Hall. Through sheer dedication and the support of his companions, he passes the knight exam. Now, under the tutelage of his teacher Long Xing Yu, Long Hao Chen endures the Holy Resurrection Ritual to ascertain his capability. The ritual reveals that Long Hao Chen is a Son of Light—an individual who possesses a vast amount of spiritual energy. Recognizing his disciple's promising potential, Long Xing Yu urges Long Hao Chen to become a strong knight capable of defeating the Demon Lord alongside him. With countless challenges awaiting him, Long Hao Chen may be the warrior that can end the era of darkness.

"The word 'no' doesn't exist in a concierge's dictionary." That's just one of the demanding rules that Akino must abide by in her new job as a saleswoman at the elegant and expansive Hokkyoku Department Store. It's a very special store — the customers are all animals, and the most valued among them are of extinct species. Sea minks, laughing owls, Japanese wolves, even an enormous mammoth — that's Mr. Woolly, the celebrated sculptor whose works are showcased at the store. It's still a luxury retail space, though, and anxious Akino finds her hands full with the customers' challenging requests. These range from hard-to-find merchandise to more complicated matters of the heart. Can the inexperienced Akino fulfill their whims and meet their expectations? If she wants to keep her job, she'll have to succeed while under constant observation by the fussy floor manager Mr. Todo, a creepy consultant eager to downsize the staff, and the store's enigmatic president (who is not a penguin, by the way!).