Oita Prefecture, known as "Toyokuni (Land of Abundance)" since ancient times, was divided into two countries, Bunzen and Bungo, during the Asuka period. During the Nara period, the Hachiman Shrine in Usa was prominent as the main shrine of 40,000 Hachiman Shrines throughout Japan, and the unique Buddhist culture of "Rokugo Mountain" flourished on the Kunisaki Peninsula. In Oita Prefecture, the perfect stone culture such as the Buddha with a Buddha statue carved on the surface of the cliff rock and the mighty Nio statue are still preserved to this day.

During the Kamakura period, the Otomo clan entered Bungo as a protectorate in the Kamakura period, and his rule continued for about 400 years, especially during the Otomo Sorin's period, when his sphere of influence expanded to six northern Kyushu countries, including Bunzen. Otomo Sorin, as a Catholic daimyō, actively absorbed Christianity and Western culture. In Funai (now Oita City) and Usuki, Chinese merchant ships and Portuguese merchant ships came and went, and the "Nanban trade" entered its heyday, and Oita was the most prosperous international city at this time.

Oita Prefecture is located in the northeastern part of Kyushu, Japan, facing the Seto Inland Sea, with a flat shoal coast to the north, Beppu Bay in the middle, and a rias-style coastline in the south. Due to the shipping of the Seto Inland Sea and the convenient transportation with Nara Prefecture and Kyoto, it has been a culturally developed area since ancient times, especially in the history of religion, and it is an area with a strong religious culture. There are the Nakatsu Plain facing the Zhoubo Shoal and the Oita Plain south of Beppu Bay.

Mountains make up the majority of the county's land. To the north there are volcanic mountains such as the Kujuren Mountains, the Yamakei lava plateau, and the Kunisaki Peninsula, and to the south there are the Kyushu mountains, including limestone fields. The spring water is clear and abundant in water, which is composed of mountains represented by the Kuju volcanic group, the Grandmother, the Steeping Mountain Range, the Eihiko Mountain System, and the Inunodake Mountain Range, as well as lava terraces such as Kuju and Yamakei. Since the Kirishima Volcanic Belt stretches from north to south and runs northwest to the Hakusan Volcanic Zone, hot springs gush out everywhere, and the number of hot springs is the largest in Japan.

"I really want to go to Beppu for a hot spring!" Walking out of the airport, Reika Sakurai looked at the Oita Prefecture tourist brochure she was holding in her hand and let out a longing shout.

"Lingxiang-chan, don't think about such a good thing, we have limited travel time, so we don't have time to go so far to the hot springs." Hana Nakata also had a brochure in her hand, and although she also wanted to go to the hot springs, she thought of the publicity work of the new order, and she dispelled this idea.

Ikuta Erika flipped through the brochure in her hand, turned to the page of food, and asked Kiyora Hatanaka, who was born in Oita, "Sugar, what's delicious about Oita?" ”

"Yiku sauce, don't always worry about eating! We're here to promote the new order, so let's work hard! Ichirai Reina complained to Ikuta Erika on the side.

Ikuta Erika pouted dissatisfiedly and said, "Why? Only when you are full can you have the strength to work! Erika Ikuta's words made the members laugh.

After Sato Yuri rubbed his buttocks, he said with some regret, "I really want to take Senya-san's private jet again!" The luxury seats are more comfortable than the first class, unlike the economy class we sat in, and the butt was all painful. As he spoke, Yuri Saito's hand touched Mai Shiraishi's back again, pinched Mai Shiraishi's ass and said, "Mai, does your butt hurt?" I'll rub it for you! ”

Mai Shiraishi slapped away Yuri Saito's hands and shouted angrily: "Perverted Yuri, how many times have I told you, don't touch people's butts casually!" After saying that, Mai Shiraishi made a gesture to chase and beat Yuri Saito, but Yuri Saito ran away with a wicked smile, moving his hands while running, as if he was reminiscing about the feeling of Mai Shiraishi's buttocks, and said with an intoxicated face: "Mai's ass is really good to the touch!" ”

Nana Hashimoto grabbed Mai Shiraishi, who was a little annoyed and angry, although she smiled gloatingly, but Nana Hashimoto felt that she still couldn't let Mai Shiraishi clean up Yuri Saito, in case Mai Shiraishi couldn't hold it and used real power, something would happen.

So after Nana Hashimoto grabbed Mai Shiraishi, she said to her with a smile: "Mai, Yuzu is just a joke, don't take it too seriously." Besides, don't you like to touch other people's bodies? After speaking, he looked at Nanase Nishino on the side.

After agreeing to Nishino Nanase to become Senya's wife, at Mai Shiraishi's suggestion, the three held a so-called welcome dinner, that is, inviting Nanase Nishino to dinner together in the apartment where Nanami Hashimoto and Mai Shiraishi lived. Because Nana Hashimoto was not invited, Nanase Nishino stayed after eating and planned to stay overnight. As a result, when she was sleeping at night, Mai Shiraishi couldn't help but touch Nishino Nanase up and down. Early the next morning, looking at the two entangled, Nana Hashimoto, who had been suffering from them, was deeply glad that he would also use this incident to move Mai Shiraishi and Nanase Nishino to entertain themselves.

After some laughter, the members of the selection team were divided into three groups and went to different places to promote the second single "おいでシャンプー".

Because Oita Prefecture is the hometown of AKB48's Rino Shihara, the promotion of the new single here has made the members feel a little uncertain. With some apprehension, the three groups set off for different destinations.

Among them, Mai Shiraishi and Nanase Nishino were grouped together with Narira Miyazawa, Reina Ichirai, Yuri Saito, and Sayuri Matsumura to go to the famous Kannawa Onsen in Oita. Nanami Hashimoto joins Kazumi Takayama, Rina Ikoma, Sayuri Inoue and Minami Hoshino to promote the new single at the Mt. Takasaki Nature Zoo and the Umi Egg Aquarium. The remaining Yumiko Iwase, Reika Sakurai, Hana Nakata, and Erika Ikuta went to Oita and Beppu City with Kiyora Hatanaka, who was born in Oita.

After the assignment of the three groups was decided, they each got on the transportation and set off towards their destination.

Kannawa Onsen is the hotspring area with the most hot spring style among the eight hot springs in Beppu, and it was developed by the Master Ichirobi during the Kamakura period, known as the "Kuberi no Yu". At the heart of the hot spring is the "Steaming Bath" created by the Venerable Master Ichiban, and there are many public baths, inns, and souvenir shops on both sides of the quaint and slightly narrow streets, and the famous spots such as Beppu Hell.

The medicinal baths at Kanwa Onsen are nostalgic hot springs. In the past, the iron wheel was recorded in the "Bungo Wind and Soil Chronicle" as "the foot of the river straight mountain", but I don't know when it became the Buddhist term "iron wheel". The "steaming" bath, where you sweat while lying in a stone house, is comparable to today's sana bath. You can also see a variety of colorful landscapes like the blue "Sea Hell", where hot spring water gushes out of the ground.

Because of the weather, it was raining lightly in the Kanwa Onsen area in the morning, and Mai Shiraishi and others were wearing umbrellas, and each of them had a bag of shampoo specially made for this campaign on their arms, and the shampoo was printed with the cover of Nogizaka 46's single on the package.

After distributing shampoos to passers-by and residents around Kanwa Onsen and spreading the word, Mai Shiraishi and his party went to the statue of the Venerable Master of Kannawa Onsen.

"Legend has it that if you pour hot spring water on a place where you are unwell, you will be able to get better and enter the soup again." Nanase Nishino pointed to the stone tablet on the side and said.

"Do you feel uncomfortable on yourself?" Miyazawa asked curiously, "Isn't that everyone going to get wet?" ”

Reina from the city on the side hurriedly corrected: "It's poured on the Bodhisattva!" It's not pouring on yourself. ”

Miyazawa's reaction made everyone laugh, and Reina Ichirai picked up a water scoop on the side and planned to splash water on the stone statue, while saying, "Then I'll have my heart!" ”

"Is your heart bad?" Mai Shiraishi asked curiously.

"No, it's not, it's a cleansing of the heart." Reina Ichirai explained.

After Ichirai Reina finished drenching, Saito Yuri took the water scoop from Ichirai Reina's hand, and chose to pour it on her lips because her mouth was on fire and her lips were swollen.

And Mai Shiraishi, who has been sleep-deprived recently, has poured a scoop of water on the top of the head of the portrait.

After everyone was drenched in water on the stone statue and prayed for good health, the staff on the side suddenly said, "Why don't you pray for the promotion of the single?" ”

Matsumura Shayu thought for a moment, took out a bag of shampoo from the bag on his arm and said, "Then wash the Bodhisattva's hair!" ”

"Don't, don't!" Nanase Nishino hurriedly waved his hands to stop Matsumura Sayuri's nonsense, and in the end the members just prayed to the stone statue instead of getting the shampoo on the Bodhisattva's head.

Reika Sakurai and others, who were heading to Beppu City, arrived in front of Beppu Station on the Nitoho Main Line at the suggestion of Kiyora Haganaka, but because of the morning, the originally bustling and lively Beppu Station was deserted and empty. Reika Sakurai and others had to divert to the center of Beppu City to carry out publicity.

At the same time, Nanami Hashimoto and his entourage came to the Takasakiyama Nature Zoo, which is home to a large number of wild Japanese macaques.

Nanami Hashimoto, who got on the cable car, was very excited when they looked at the monkeys that appeared on the mountain path, but Minami Hoshino sat aside with a scared expression, not as excited as the other members.

Because of the rain, Nanami Hashimoto and others wore raincoats so as not to wet their uniforms. After getting off the cable car and looking at the monkeys everywhere, Rina Ikoma said excitedly, "It's like my younger brother when I was a child!" ”

Although Nanami Hashimoto and others were in high spirits, it was a pity that due to the weather and time, there were no tourists at the Takasakiyama Nature Zoo in the morning except for monkeys and staff, and finally Nanami Hashimoto and others met a pair of sisters at the place where they took the cable car, and the publicity campaign began.