The B-side song "The Story of Shoes and Umbrellas", which is included in the second track of the Type N and theatrical versions, was written by Yasu Akimoto and composed and arranged by Shutaro Katagiri who wrote songs such as "Someone Throws a Ball" for AKB48. This song is a new song written by Yasu Akimoto for NHK's long-established music program "Everybody's Song", and it is the theme song of the program in February and March 2015, and it is also the first record that AKB48's work has been adopted by the program.

Unlike AKB48's J-Pop music style, "The Story of Shoes and Umbrellas" is a slow song with a piano accompaniment and a folk style like a school choir competition. The MV for this song is an animation created by Koji Minami, an animator who often draws films for "Everyone's Song", and the plot echoes the lyrics, telling the story of life and friendship between two elderly women who live next to each other and run shoe stores and umbrella shops in the declining station shopping street of the Japanese countryside. Although the theme of the story is very simple, the nostalgic style touches on the social problems that Japan is currently facing, such as the exodus of young people from the countryside and the decline of small retail industries due to industrial changes, and it has received a great response after it was broadcast on the program. In response to this, the record company even opened the song for paid online download on February 5, a month before the actual release of the single record, becoming the first song to be released in the entire single record.

The B-side song "Punk Rock", which is included in the third track of Type N, was written by Yasu Akimoto and co-composed and arranged by Makoto Nishijima and Tsuzun Rikimaru. This song is sung by the "NMB48 Selection", which is composed entirely of members of the sister group NMB48, and almost all of the members of this selection list are core members of the NMB48 singles selection team. As the name suggests, this song is a rare punk rock song among the AKB48 Group, and is vocalist by Aya Yamamoto, who formed a rock band with friends before joining NMB48 and is known among fans for her guitar playing. In the music video for the new song, the members of NMB48 form a fictional punk rock band, and in addition to Aya Yamamoto, who is the lead singer and lead guitarist, Megumi Uenishi, another member who also has experience playing the group and has played jazz drums live in NMB48's stage performances many times, is in charge of the drummer position in the music video. In addition to the footage of the band singing, the music video also includes a video of the actual shooting of the Kuromon Market, a representative traditional shopping street in Osaka.

The B-side song "Greetings", which is included in the second track of Type H, was written by Yasu Akimoto, who composed and arranged the music for NMB48 "I can't play my charm on the altar". This song is the fourth original team song and the third song with a MV after the formation of Team 8, and it is also the only new song in this single that includes a new song sung by a detachment.

The music video for the new song uses AKB48's editing technique, which has not been tried before, and creates a fictional video sharing website interface similar to YouTube and Dailymotion for this song, and then strings together a music video from the sharing video played on the website. These videos are mainly videos of the daily life of 46 Team 8 members at school, in their homes, or in well-known attractions in their hometowns, and singing and dancing clips that imitate the style of self-submitted films, which are choreographed and post-produced into a complete song. Since the videos in the MV were shot by the members at different times and locations, there was no dance formation or relative positioning, but it can still be seen from the playback order, placement and length of the video that Nakano Ikumi is the center of the new song, and the front row members on both sides are Nagasa Sakaguchi of Hokkaido and Kuranoo Narumi of Kumamoto Prefecture respectively.

On this day, Zhu Zi and the members sat together and chatted, and the girls went shopping for a day and seemed very happy.

"Teacher Zhu Zi, in fact, I have a question that I have always wanted to ask you. Yona Kojima said suddenly.

"Say, it's time to be polite today, is this still the little island I'm familiar with?" said Zhu Zi with a grin.

Minami Takahashi, Erika Ikuta, and Mayu Watanabe looked at Yona Kojima expectantly.

"What kind of king am I in your mind?" asked Yona Kojima.

Zhu Zi looked at the girl.

"Do you really want me to say it? If I do, don't be sad. Zhu Zi said.

"I won't be sad, Teacher Zhu Zi. ”

Zhu Zi thought about it, strictly speaking, when she was a child, Yona Kojima was a very insistent person, and she often got tired of playing games halfway through, but at that time, she could still hold on to it during the dark period of opening and closing, which shows that she really likes the profession of idols. With his beautiful figure and smart Yangcai, he entered the 07~08 double C era, and in 09, he was also the top 3 position that did not move, and he wanted to win it until he lost the general election, which led to the loss of the second row in the later stage, and then he also determined his positioning. Although Yangna, who has poor motor nerves, is not good at dancing, she doesn't have a beat left in dance, and you can see how hard she works when she practices dance, and she tries her best every time she dances, and she is also learning in terms of singing, anyway, the more she sings, the better. Over the years, I have been paying attention to beauty information, and I am very strict with my body dress, and I almost eat some green and healthy food when I eat, singing and dancing.

Naturally stupid, stupid, poor study, everything is pretended, he was revealed to be a good student who was undisciplined in high school, and he repeated a grade because of the problem of wearing the wrong shoes in physical education class, which shows that Yangcai is still very smart in learning. The mind is very easy to use, he knows his own positioning, he knows what he should do very well, and he is also sharp when he speaks on variety shows, which shows that his brain is running fast. It is said that it is interesting to speak, and it is interesting to talk about this thing if the brain is not good, so it can't be said, and all kinds of tai chi. Since the rice is positioned as a natural stay, stupid, and most otaku don't like smart beauties, then she simply pretends, and her teammates on the same team haven't exploded once or twice, and Yang Cai is very smart and super calculating. Some people also say that Yangcai's soft feeling is easy to bully, but who dares to bully her when she opens and closes? Unfamiliar juniors are super afraid of her, although she is fluttering, but it is particularly majestic, and the feeling of fluttering is that she doesn't care about the aura she exudes from the things around her.

Yona is still a very gentle person, and she is very gentle with her own members, and she doesn't cry at the concert because she feels worried about the meal, and she insists on shaking hands because she has some rare distant meals to see her, so she insists on playing, and when she sees familiar junior members, she will often treat her.

In Zhu Zi's opinion, this girl is very smart, she has been smart since she was a child, and after adapting to the rules of survival in the entertainment world, she is even more like the old fritters, which other members can't compare.

Yona Kojima heard Zhu Zi say that she was smart, and she couldn't close her mouth happily.