Right before Haruka was listening to Sugawara the story of Shota erased his sister's memory of being together with him.
Sugawara: Kaki I need your help with Nagi
Haruka: sure what it is?
Sugawara: I need you to avoid Shota to see Nagi
Meanwhile, Shota had a call from someone who had an expert telling them that he need to ask for them something the person was to forgive what he did to erase back her memory just to protect her life has been danger in her brother's hands.
Shota: sorry for calling you Tenchan but I need your help today
Yamasaki: sure what it is?
Shota: I had erased my sister's memory into her mind
Before Shota went outside the boy's dorm and Sugawara and Nagi had seen Shota walking outside the boy's dorm Nagi want to follow him from the back but Haruka just grab Nagi's arm and turn around back to the Academy with Sugawara.
Nagi: wait...what are you doing with me, Haruka?
Haruka: please stop following Shota and he will get scolded
Nagi: wait...did Shota have a sister and what is her name?
Sugawara and Haruka just close their mouth once Shota had stopped walking and turned back if someone follows him from his back but no someone had to follow him.
Shota: I thought I saw someone behind me
Later Sugawara and Haruka drag Nagi from there and went back to their dorm room together with Sugawara and Haruka and her roommate was there with the 3rd gen member.
Mizuki: Haruka? Sugawara? what are you both doing with Nagi?
Haruka: nothing no reason why
Sugawara: Nagi...you need to stop following Shota
Nagi just shook her head and her hand let go of both Sugawara and Haruka's hands of her.
Nagi: why can't see Shota give me some reason why?
Sugawara: you need to wait for Shota to return to meet someone
Back inside the Sakura dorm, Shota went to see Tenchan to help him recall his sister's memory into Shota's thought.
Yamasaki: welcome to Sakura Academy and here is my member
Shota: cut the joke Tenchan please help me recall my memory of Nagi
Yamasaki: we'll you came to the right place
Once Tenchan and Shota had to go inside the Sakura dorm where they had to talk to each other together with Shota.
Morita: Tenchan who is your male guest?
Yamasaki: sorry Shota here is Morita Hikaru your old friend went you had an accident nine years ago
Shota: Long time no see Morita I miss you how are you?
Out of the blue, Morita just hug Shota and she was saying to him.
Morita: how could you be alive went you died nine years ago
Shota: I got to regenerate myself once more to save my sister's memory
Out of a sudden, Shota needs to go back and tell the truth been died over nine years ago but his life becomes a god who controls the power of happiness.
Shota: sorry Tenchan I got to go back to see Nagi
Yamasaki: no problem but if you want to share your thoughts with me you are so welcome
Shota just ran back to the Nogizaka Academy dorm and went to the Haruka with Sugawara along with Nagi with them.
Shota: I'm sorry I'm late and I miss you Nagi *collapse*
Haruka: did you run over here don't stop
Later Shota just crawls and leans on the dorm room walls and he nodded at Haruka's answer to her.
Shota: yes...I did run but can I give Nagi's memory back to her
Sugawara: are you sure you want to give her memory back
Shota: I had no choice but to give back her memory
When Shota was over to Nagi and he put his right hand on his head and suddenly, Nagi's memory was restored to usual but Shota just rest back on the ground breathing so damn heavily.
Nagi: wait... Nissan, are you my brother Shota?
Shota: I'm sorry for you to keep waiting please give your brother a hug
Later Nagi rushed over to Shota and they were happy to see back each other again the past month later but now Shota and Nagi are back together again in his life.
Shota: now you know that I kept a secret for you to find out the truth been alive
Nagi: Nissan please don't ever erase my memory
Shota: I won't and can we give another hug
Once Nagi and Shota give one more hug and later Nagi went back to her dorm room with Sugawara and Shota was happy to have a long time no see moment together with them.
Nagi: Nissan we will see you tomorrow morning
Shota: yea we will see you
Later Shota went back to his dorm and he close his door and lock the door inside he can feel the pain inside but his soul are gone one by one now he had only 46 souls remaining inside his body to get his torture god's punishment.
Shota: I'm sorry to reveal the Nagi memory back please forgive me
Out of the blue, Yamasaki and someone who had the same power as Shota but he was their leader to guide all the god power of happiness.
Yamasaki: Shota your soul only have 46 god soul
Shota: I'm sorry but if my soul becomes zero what will happen to me then
All of the god-showed Shota went his soul become zero and he will die and never get back to his sister he erases her memory once the shown had done Shota was a bow to them.
Shota: where is another god you manage me?
Yamasaki: I'm sorry she was out for a while
Shota: I see but please tell her to know what is going on
Out of the blue, Yamasaki left Shota's dorm and went back to her Sakura dorm and he have only 46 god souls left if he ever used his power to get back his soul remains.
Yamasaki: I'm back home so what is our dinner today?
Manafi: today's dinner is pasta with tomato sauce how did Shota doing
Yamasaki: he did reveal his sister's memory back but I give him 46 god souls once his god soul becomes zero will die eventually
When Takase Mana the last god power of truth died nine years ago and Shota can't use his god power once again but if he ever uses them they will cut off the remaining god soul of his life.