In the underground dojo of the Taisha here, Qianye is standing in the renovated study, frowning, looking at ancient books.

A large number of ancient books floated beside Qianye, constantly flipping, but Qianye always frowned, and there was an inextricable sadness in his expression.

"Master, do you have anything to worry about?" Ruodie looked at the puzzled Qianye and asked with concern.

Qianye shook her head, let go of the ancient book in her hand and let it float, turned to Ruodie and asked, "Ruodie, do you think there is any way in this world to make people immortal?" ”

"Master, why do you suddenly care about immortality?" Ruodie looked at Qianye curiously, and asked with some puzzlement: "Master, didn't you already live forever a thousand years ago?" ”

"It's because of Nanamin." Qianye showed a rare trace of annoyance on his face, and after raising his hand to scatter the ancient books in front of him, he sat down at the low table next to him rather depressedly, picked up the teacup and made a cup of tea, and poured it down.

"Miss Hashimoto? Does the owner want Miss Hashimoto to live forever too? Ruodie nodded thoughtfully, took an ancient book and opened it, and said to Qianye: "As for the method of immortality, in addition to the Taoist Jindan cultivation method and the outer Dan immortality, there are only those heavenly and earthly treasures that are said to be immortal if you eat them." ”

"Genius Dibao?" The corners of Qianye's mouth pulled up a wry smile, and he shook his head helplessly: "Don't say how rare genius treasures are, how many of those legendary heavenly treasures are still left after thousands of years?" The immortal medicine of Yaochi Pan Tao and the Queen Mother of the West only exists in legends, and the road to the heavens of West Kunlun has been cut off after King Mu of Zhou met the Queen Mother of the West; Junshan's immortal wine was drunk by Dong Zhongshu, and the roots were completely broken; As for the imperial medicine hidden in Wushan recorded in the "Classic of Mountains and Seas", who has found the true location of Wushan from ancient times to the present? As for Ruodie, you said that the Taoist Jindan cultivation method and the outer Dan immortality, not to mention how difficult the cultivation method is, how many people have achieved cultivation since ancient times, and the time required for cultivation alone is not something that a girl from Nana Min can bear. As for the Wai Dan Immortality, if the elixir of immortality is so easy to refine, there are so many emperors and generals in history, but one of them can live forever? ”

"Then Mr. Genyi, why don't you try those methods of Japanese legend that can make people immortal? Maybe something else? Seeing that Qianye was so distressed, the honeyworm on the side opened her mouth to suggest to him.

"Japan's method of immortality?" Qianye's eyes froze, as if he was thinking, he picked up the teacup and said to the honey worm, "Tell me, honey worm." ”

"Okay, Mr. Xuanyi." Honey Worm smiled at Qianye and filled the empty teacup for him before slowly speaking, "In Japanese legends, there are also many ways to make people immortal. ”

"Mermaid meat, for example?" Qianye looked at the honey worm who was talking, and a smile appeared on the corner of his mouth: "Back then, Qingyin ate mermaid meat to live forever and became the guardian of Kyoto, but now where are you looking for a mermaid to let Nana Min eat meat?" As for the other beings, the Human Face Tree, even I don't know where this sacred tree that can make people immortal is. Other than that, is there any other way? ”

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"Eh, hasn't Nanami come back yet?" Mai Shiraishi opened the door and found that Nanami Hashimoto hadn't come home yet, so after breathing a sigh of relief, she took off her shoes and walked to the living room and sat down on the sofa.

"Welcome back, Lord Shiraishi! Wail! The prawn toad jumped up and down, poured a glass of water for Mai Shiraishi, and then stood respectfully in front of her.

"Oh, it's you!" Mai Shiraishi glanced down at the prawn toad, and then said a little lazily: "By the way, how are you settling down?" After leaving this Taisha shrine, have you found a place to live? Rent in Tokyo isn't cheap! ”

The prawn toad bowed to Mai Shiraishi before replying respectfully, "Thank you for asking, quack!" This matter has been settled, quack! Chiba-sama provided us with an abandoned port warehouse, and everyone from the Nine-Tails has settled there, quack! The ghost and the owner of the green square are planning to renovate it a little bit to make it more comfortable to live in, quack! ”

Mai Shiraishi picked up the prawn toad and poured water for her, and said to the prawn toad while drinking, "That's good, if you need anything, just tell me." But prawn toad, you have to tell them, don't harass ordinary people, I don't want to hear the news that the countermeasure room will ask Qianye to encircle and suppress you one day, and what is the Nine-Tails Group? ”

The prawn toad took the water cup that Mai Shiraishi had drunk, and while pouring water for her again, she answered Mai Shiraishi's question seriously: "The Nine-Tails Group is the official name that everyone has decided after discussion, quack!" It's used to call us youkai under your command, Lord Shiraishi, quack! After all, since you have joined your command, in order not to fall into the prestige of your nine-tailed fox, quack! We really need a formal external address, otherwise we will lose your face, quack! As for harassing ordinary people, please rest assured, quack! Lord Demon Sword, Hair Ghost, and Qingfang Master have already set the rules after the name of the Nine-Tails Group has been established, quack! It is strictly forbidden for members of the Nine-Tails to harass ordinary humans, quack! If a youkai breaks the rules, the Nine-Tails will crusade against it, quack! ”

"That's good, as long as you don't harass ordinary people, you can do whatever you want." Mai Shiraishi said lazily, and suddenly remembered the lifespan problem that Nana Hashimoto hadn't mentioned before, so she asked the shrimp toad seriously: "Shrimp toad, do you know if there is any way to prolong the life of ordinary humans?" The longer the better, and the best way to reach the lifespan of a youkai! ”

"My lord, do you want to prolong the life of your friend Miss Hashimoto, quack?" The prawn toad looked at Mai Shiraishi curiously, thought about it seriously and replied, "If that's the case, you can let Miss Hashimoto eat the mermaid meat to gain immortality, quack!" ”

"Are you immortal?" Mai Shiraishi suddenly sat up from the sofa with great interest, looked at the prawn toad seriously, and asked him, "Then where can I get mermaid meat?" Are you going to catch it in the sea? ”

The prawn toad shook his head: "I don't know about this little one, quack!" The little ones have only heard of the legend that they can live forever after eating mermaid meat, quack! Adults, you can ask about the sea seat head and the sea memo room, quack! They're monsters that live in the sea, and they should know about merfolk, quack! ”

"Really? Then the prawn toad, you can help me ask the head of the sea to ask them. Mai Shiraishi hesitated for a moment, then propped up her chin with her hand, looked at the prawn toad with a curious glint in her eyes and asked, "Prawn toad, do you know that there is any other way to extend the life span of humans besides mermaid meat?" After all, I don't have mermaid meat yet, and I don't know when I'll get it, so if it takes a long time, I don't want to watch Nanami get old! Mai Shiraishi said to the prawn toad while exuding the momentum of a nine-tailed fox. It seems that after summoning the night walk of the hundred ghosts, the momentum of the big monster on Mai Shiraishi has become more and more sufficient.

Under the pressure of Mai Shiraishi's momentum, the prawn toad couldn't help but shed a trace of cold sweat on his face, and said to Mai Shiraishi with some trepidation: "In fact, there is another way to extend the life of human beings, quack!" If you do that, your friend will no longer be a human, but a youkai, quack! ”

"You mean, let Nanami become a youkai like me?" Mai Shiraishi listened to the words of the prawn toad and said thoughtfully.

The prawn toad nodded quickly and said to Mai Shiraishi, "Yes, Lord Shiraishi, quack!" If you want, you can turn Miss Hashimoto into a youkai, quack! That way, she'll have the same longevity as a youkai, quack! Just ......"

"It's just something, don't spit it out!" Mai Shiraishi looked at the prawn toad with oppressive eyes, and even her eyes turned into heterochromatic eyes.

"It's just that such demonization also requires a premise, quack!" The prawn toad seemed to be frightened by Mai Shiraishi's oppressive eyes, and said with some trembling: "If it's just an ordinary demonization, you just need to let Miss Hashimoto drink your blood,!" But this level of demonization can only allow Miss Hashimoto to gain a part of the power that belongs to the youkai, quack! Miss Hashimoto's lifespan will not be extended too much, and it will not exceed three hundred years at most, and Miss Hashimoto will grow old, quack! ”

"Then since you said this method, it means that there are other demonization methods?" Mai Shiraishi was not angry because of the shrimp toad's words, she thought of her demonization process, and looked at the shrimp toad with a smile on the corner of her mouth: "If you know something, just say it, shrimp toad." I don't think you're trying to tell me that you only know this one method of demonization, do you? ”

"There are indeed other ways, quack!" After hesitating for a moment, the prawn toad still told Mai Shiraishi another way to demonize ordinary humans: "That is, after killing a big monster, extract the essence of its whole body and inject it into Miss Hashimoto, quack!" Let her gain the power of this big monster, and at the same time be able to have a lifespan equivalent to that of a big monster, quack! It's just that this method has to kill a big monster, and it also needs to extract at least eighty percent of the essence from its body, quack! ”

Mai Shiraishi's eyes flickered, as if she was thinking about the feasibility of this method, leaning on the sofa as if talking to herself, and as if asking the prawn toad: "So we first have to catch a big monster?" So where can you catch a big youkai? ”

Looking at Mai Shiraishi, who was seriously thinking about this question, the prawn toad felt the momentum emanating from Mai Shiraishi's body, and trembled.