after Kaneki split his personality into 4 the one that took control was Quan the kind girl like personality which represents his friend and he is watching over his new Friend as Kaneki/Quan once again become The Hero of Hell and Atlantis
he wore his mask and his appearance and voice changed, his hair became shorter and its color turned from black to brownish red and his voice sounded a bit low pitched and a little deep as well.
as the Kaneki/Quan became the hero and went to the roof of a house where Natsuki Mizutani is nearby via Demon Portals and in the line of sight he saw his former childhood best friend Yuuka Mirai.
Kaneki/Quan: what is Yuu-chan doing here?
3 minutes earlier
Yuuka: (alright if I want to get data on Mizutani-san i must follow her).
present
Kaneki/Quan: what is Yuu-chan doing here? was she sent by someone?... no that's not the case right now. either way I don't want to get involved so I'll stay out of sight for now.
But it's strange I have a very bad feeling right now so I must be vigilant.
Kaneki/Quan follows the 2 from afar and is making sure they get home safely but then.
Yuuka: Alright I'm still hidden well she can't see me-
Natsuki: Show Yourself Already!
Yuuka: AAH!
Natsuki noticed Yuuka.
Natsuki: I knew it! you were stalking me Mirai-san!
but Yuuka was pretending she wasn't stalking her even though she was
Yuuka: fufufu~ what are you talking about Mizutani-san? I was just walking the same place it's just a coincidence.
Natsuki: you can't lie to me I can tell by the way you're acting.
Yuuka: (sh*t she knows well in that case I have no choice!) well sorry about that I just wanted to ask you something.
Natsuki: what is it?
Yuuka: do you know what ita-kun's favorite foods are?
She asked a question that was both truth and a lie.
Natsuki:...
Yuuka: (she's not buying it!)
Natsuki: I don't know I don't really like Itadori-kun at all I don't even see him as a close friend.
Yuuka: wait seriously! (wait that was an unexpected answer but at least she bought it!) but i thought he was your childhood friend.
Natsuki:... is that all you wanted to ask?
Natsuki still doesn't trust Yuuka.
Kaneki/Quan: what are they talking about? it doesn't look like Natsuki spilled the beans but Yuu-chan looks shocked.
Kaneki/Quan was also confused. he was thinking he should head home then he noticed a van that was in the alley that was a bit in front of the 2 girls and he had a weird feeling because of it.
Kaneki/Quan: strange.
Back at the 2 girls.
Natsuki: is your home this way?
Yuuka: yes actually.
Natsuki: in that case let's go together it's dark so it's safer if we are together.
Natsuki offered to escort Yuuka home.
Yuuka: sure.
Yuuka accepted and they walked forward but when they reached the van opened its lights and drove in front of them almost hitting them.
Yuuka: Mizutani-san are you alright?!
Natsuki: yeah I'm fine but what-
the vans door opened and 5 delinquents came out.
delinquent 1: my my what do we have here 2 cute girls late at night.
delinquent 2: I have an idea what about you two cute girls come with us to have some fun.
Natsuki: no thanks! Mirai-san let's run!
The other 3 delinquents blocked them
Yuuka: no this can't be happening!
delinquent 5: oh it is now come with u-
ROOOOOAAAAAHHHHHRRRR!
a loud monstrous roar came from afar.
Yuuka: Mizutani-san.. what was that?
Natsuki: I don't know.
Delinquent 4: what are you guys doing grab those 2 and put them in the va-
*Crack*!
Delinquent 1: wha- WHAT IS THAT!
Hero: preying on 2 defenseless girls huh? you people make me sick! now you'll pay by breaking your BACKS!
*Crackling*
when Kaneki/Quan saw what happened he instantly went into a rage. he was so enraged he roared and attacked one of the delinquents and broke his back but still alive.
Hero: there we go, done.
Kaneki/Quan defeated the remaining 4 and delinquents and he thought the 2 ran away but.
Yuuka: amazing, he has beaten them so effortlessly.
Natsuki: you're right.
The 2 are still there.
Hero: Calling any law enforcer near the suzuki district there was an attempted kidnapping of 2 high school girls all 5 suspects have been neutralized.
Natsuki: thank you mister?
Yuuka: THAT'S THE HERO OF HELL/ATLANTIS!
Natsuki: what do you mean?
Yuuka: look at the mask its colored purple it has demon horns, sharp teeth with a zipper, red eye pieces and it's scary looking it's Fr the Hero of hell and Look he even has his signature left handed Katana.
Natsuki: not that you mention it he does look like the hero of hell/Atlantis I saw on tv a while ago.
Natsuki couldn't help but ask.
Natsuki: are you really the Hero?