While we going to beat them Maru and Touma are battling their creator of his testing human but while Touma fights his leader and Maru is fighting with Ryo his assistant of his boss.
Maru: you scared Ryo
Ryo: I'm not scared but your friend should be scared of the leader
Maru: why is that?
Ryo: while he should be doing to help their friend
Suddenly, Touma uses his full blast but the leader is completely dead after he used the super punch of his heart and the heart came out from his body and Maru says to him was great on him.
Touma: well Ryo your leader is dead
Ryo: no you destroy him now I am going to destroy you
Touma: I can't let you do that
Ryo: why not?
Later Touma and Maru use a full power blast to get the way from Ryo and we can see from the safety security house.
Kobayashi: Touma be careful out there
Touma: don't worry It will be over soon I promise
While Mari and Kobayashi see from the CCTV and they destroy Ryo and leader just turn into a cloud of dust and they get clear away from the where we fought with them.
Touma: Maru the Mission is done we are saved
Maru: yes we are but can we go back to meet the Sakurazaka and they want to meet you in person
Touma: I like that idea
Out of nowhere, Maru and Touma Teleport back to the safe house with a lot of security machines everywhere around the system.
Touma: Yui we are going to meet them if they know me
Maru: and me too
Kobayashi: of course, they know you they miss you so much
Touma: and I didn't see my little sister grow up
Maru: wait did you have a sister that I didn't know of
Kobayashi: yea he has his sister from the same as I did
Maru: who is your sister again?
Mari: Oniichan you don't know she likes to play baseball with you
Maru: with me?
Mari: she is Takemoto Yui
Maru: oh her sorry I know her just forget about her look now
Kobayashi: Touma tomorrow we go and meet them while we go to sleep
Touma: yea sure
While they going back to sleep and Maru his sister is sleeping together as brother and sister and Kobayashi with Touma are sleep on the sofa while they wrap together as a cute couple and we go to sleep at the night at Touma safe house full of security systems everywhere inside the living room.
The next morning at Touma safety house security and Kobayashi had a wake-up but she saw Maru and Mari are ready but Touma didn't wake up yet while she going to wake him up and suddenly, we saw that Touma's mouth have some dry blood on his lips but we didn't have that full fight with his own creation that badly.
Kobayashi: Maru why did Touma have blood on his mouth
Maru rush to Touma and take a look at him and he does like some kind of doctor thing and he touches his heartbeat or his pulse and later he had no heartbeat is beating but his pulse is too weak and he needs a real doctor and fast I remember that I've become a doctor went I trainer to be a doctor before but I need to operate him here while we go and meet the Sakurazaka46 Member.
Maru: I need to operation him here now help me
Mari: of course Oniichan I will help
Kobayashi: I also help too
In the meantime, they help him and Touma is resting on the sofa and we take out everything that had some kind of connection of a doctor staff.
Maru: okay we are doing some surgery on Touma and see what did happen last night went we are sleeping
Mari: I'm ready Oniichan
Kobayashi: me too
Maru cut his stomach and went he was cutting later Kobayashi and Mari can see that his creator is made him as half human and half cyborg and he had a heart that beat like a machine but also a human life on Touma body.
Maru: I think his battery is low let me change it into a fully loaded battery just wait for a second
While he was changed into a new battery and Maru used a laser to needle back together and a few seconds Touma open his eye and he stand up and see that Kobayashi and Mari are looking so worried about him and they both hug him.
Kobayashi: not do ever again
Mari: yes later Oniichan need to change your new battery again
Touma: Maru you change my old battery to a fully functioning battery
Maru touch his shoulder and he nods at him and he is happy that has a friend with Maru and we go and leave the house full of security systems and Touma is driving a real car and Maru shakes his head and say to him was.
Maru: no I drive you to stay at the passenger seat
Touma: but I want to drive the car
Maru: you are not a full human remember you are now a half-human and half a cyborg okay
Touma: sorry Maru fine you drive then
Meanwhile, Touma go and seat in the passenger seat and let Maru drive the car and we are inside the car and off to the Sakurazaka46 Member and Mari also join to meet them herself.
Mari: Oniichan your driving skills are great and why you didn't let Touma drive
Maru: well he is a racing driver while he had and terrible car accident
Mari: what happened to Touma?
Maru: well he drive the BMW M5 and the drift to the wrong side and his car split into two parts and his body had struck something sharp at his heartbeat
Kobayashi: oh my god! Touma, I didn't know that and I'm sorry
Touma: not be sorry I'm the one who should say sorry to you all
Mari: I think we are here
Maru: yes we are here
Touma: I need to stay here and let other Members come outside, please
Kobayashi: of course Maru you company him and Mari you come with me
Mari: okay
While Kobayashi and Mari went inside to the Sakura studio and let others know that Touma had returned back from that bad people do something with him as a testing experiment for dead people or accident people who had discovered something inside of his body.