Right before the Sakurazaka46 member had to wake up in the freaky morning wearing some of her pj pants and walk over to the dance practice and they had seen that the 2nd gen member was here at the 1st and 3rd gen dance practice together with them.
Onuma: eh...? Why am I here?
Kobayashi: Onuma did you sleepwalk again
Onuma: I can't remember what had happen to me
Out of the blue, Yakubo and Ichinose arrived with some cool styles went they reached Sakura studio with all the 1st, 2nd, and 3rd gen of the Sakurazaka46 member.
Yakubo: Onuma you had a power that you can't control
Onuma: I have a what inside my body
Ichinose: you have a metahuman power inside of your body
Meanwhile, Yakubo and Ichinose brought Onuma with them to the HQ build of the superhero centre and Legacy had to see that she is the new member who had joined them as a backup team for some injured hero are taking some serious battles with someone else.
Legacy: so you are the new metahuman member and your name was Onuma Ahiko
Onuma: yes I am sir
Kanemura: welcome new member to the superhero build HQ centre I am Kanemura Miku from Hinata Team
Once Onuma was going to train her new power inside of the training practice with Yakubo and Ichinose and there has the Nogizaka46 member idol who was meeting Yakubo and Ichinose at the training practice with a new metahuman member who had joined us for a Team backup.
Endo: Yakubo...who is she?
Yakubo: oh she is the new metahuman member as a Team backup
Ichinose: eh...? Where is Aya-chan?
Suddenly, Ogawa Aya together with Nagi and Kaki who was together with Legacy was playing some game and Ichinose was walking over toward Ogawa with a soft punch on her shoulder she turn around and see that Ichinose was getting upset from getting more people than herself.
Ogawa: I'm sorry Ichinose Miku
Ichinose: I need some fresh air why not Yakubo you train you here
Ogawa: Ichinose please wait up for me!!
Before Ogawa was catching up to Ichinose Miku from outside and suddenly, she goes back inside and Ogawa can see that Ichinose was protecting her from getting hurt and Ogawa was asking Miku what is going on here outside the mansion.
Ogawa: Ichinose...oh my God you are hurt because of them right?
Ichinose: it's okay you don't have to get upset about them I need to apologize to you
Ogawa: I will forgive you and please let them check on your wounds
Before they entered the Nogizaka Mansion and suddenly, Yakubo was rushed toward Ichinose she was cleaning her wounds Ogawa is getting worried about her health condition.
Yakubo: Ichinose are you okay?
Ichinose: yes I am but where is Legacy?
Kaki: oh he was with Nagi and there have someone was here to see Yumiki Nao
In the meantime, Yumiki Nao had come here and saw that he was her brother from her first-ever performance that he went to see his sister.
Yumiki: Takashi nii-chan why are you here at the Nogizaka Mansion?
Takashi: of course to see you back home but I just live next door on the Nogizaka Mansion
Yumiki: everyone he is my brother who had take care of the family
Once Takashi was walking out of the Nogizaka Mansion and he went inside his private mansion house with a lot home system that he install at the entrance only his close-up family can come inside the private mansion house.
Yumiki: Takashi nii-chan can I come with you inside your private mansion house
Takashi: sure you can come inside and you are my family member after all
Yumiki: thank you Takashi nii-chan
Without any sound coming from both of them and they go inside to the private mansion house with Yumiki Nao with her brother Takashi Yuri.
Onuma: wait...can I go back to my Sakura studio Tomita
Tomita: sure of course but you are not ready to control yourself
Onuma: I know that but maybe I can train tomorrow morning at Legacy
Meanwhile, Onuma went back to the Sakura studio and everyone can see that Onuma was there at the studio others can see that she had a new suit that she was wearing but other members are asking her where did she go this early morning and now she was coming back at the evening.
Takemoto: Onuma...where did you go early this morning but now you came here in the evening
Onuma: sorry I can't tell you what is going on here with me
Nakamura: wait...Onuma you have some extra mission that Legacy had to give you to do
Out of the blue, Onuma chewed the glowing bubble on her right hand and she suddenly turned into some kind of superhero hero suit on her full body.
Takemoto: wait...Onuma you are the new superhero that others hear of
Onuma: like I said I can explain to you but Reno can explain to you what's wrong with me
Yamasaki: wait...Onuma please be careful with your mission
Later Onuma was pat on Yamasaki's head while she was get blushed on her face with others who are watching her on the first-ever mission that Legacy was giving her to get extra practice with her power.
Onuma: I'm ready and what can I do Nakamura
Nakamura: you need to wear this on your ear while Legacy gives you the first mission like a solo mission
Onmua: sure of course I will do it then
Back inside at the Sakura studio same with Nakamura Reno and later the Yamasaki with Takemoto, we're watching Onuma fighting with some most dangerous objects that Legacy had her do some throwing practice and she can control her power if she could do that Onuma can go the actual real mission with Yakubo Mio, Ichinose Miku same with Onuma Ahiko.
Legacy: Onuma you need to use some fire elements to burn them into ash
Onuma: okay let me do this thing then
Legacy: you just need to focus on your fire element and if you do have just let it out your fire element
Before Yamasaki and Takemoto had to see that Onuma are having so much fun doing her metahuman power inside one of the Legacy practice programs or projects that were just only for the new member of the metahuman person who had experienced ever it.