Yuuka, Shino and Miku the three girls know about Kaneki and Natsuki's secret and they don't plan on telling anyone.
Miku: alright here's all I know.
Miku explained everything she knows about those two.
Miku: she said she finds Ko-chan's color beautiful and pleasing and she told me she can see one's true self and their colors but she mostly looks at the colors and not the true self and she only looked at both when she saw Ko-chan.
the girls were sharing the information they got but then.
Shino: ok this is great now we need- Wait where's my diary!
Yuuka: why? what's wrong?
Shino: my diary is not in my bag! and it has my secrets in it and that includes Ko-chan!
Miku: Oh No this isn't good at all!
Shino: yeah and you two are in there too!
Yuuka: WHERE DID YOU LOST IT!?
Shino: Maybe it's still in our Classroom!
Yuuka: let's go then we might not be too late!
Shino & Miku: LETS GET GOING!
the girls faced a dilemma with Shino's diary still in their classroom they rushed to get it back before it was too late.
meanwhile*
Keita: hey Kaneki what's wrong with you you've been biting on your hand for 5 minutes straight that's not good you know?
Kaneki: sorry I'm just feeling a bit uneasy.
Itsuki: why are you feeling uneasy?
Kaneki: well last night I got a text from my first sensei.
Chikao: your first Sensei?
Kaneki: yup, I had many Sensei's over the years but my first Sensei is the one I respect the most.
Yuta: can you tell us about your first sensei?
Kaneki: fine but this ain't a really good story so be warned.
after my mom died I was in grief but I wanted to keep my promise so I trained in the forest nearby really hard and sword-san told me to find someone who lives in the forest, she also said that person is my Moms friend.
I did what she suggested but it was hard going through the forest but I was able to find my moms friend I asked him to train me but he refused saying.
"I can't train you yet you're too young just come back when you're older"
But i wasn't satisfied so I made him train me by ambushing him every time. but he eventually agreed he made me do many simple task which I was satisfied with.
but when we finished I knew it wasn't really done because my sensei didn't make me do really really hard work so i forced him to spar with me without holding back.
he always said "I can't i don't want to beat up a 3 year old" but that couldn't stop me so every time I see him i draw sword-san and I keep attacking him and pretty much make his life Hell.
Chikao: that's terrifying.
He was so tired he had no choice but to spar with me without holding back I have to say he kept breaking my bones and after every sparring session he would collapse and cry.
at some point he beat me so badly that all my bones got broken and he started to go crazy but at that moment I acquired my regeneration and we kept sparring and i was able to beat him.
he did tell my dad what was happening and he always apologized to him but my dad is the one who apologized too because of my actions.
Natsuki: that's scary how many of your screws were loose at that time?
Kaneki: I'd say every one of them. but honestly I really feel bad for traumatizing him like that he actually went to go get therapy too.
Itsuki: I find that really hard to believe how is your sensei now? I feel really bad for him.
Kaneki: I don't know but if I were to see him i would go on my knees and apologize for making him do something he didn't want to do.
Itsuki: yeah that's a good idea. I'm going to the bathroom let's chat when I get ba- hey look it's someone's diary.
Ryueki: who does it belong to?
Itsuki: it says here it belongs to Tanaka-san.
Ryueki: interesting let's read-
Kaneki: you guys shouldn't read that.
Ryueki: why not?
Kaneki: unless Tanaka-san willingly shared her secrets in that diary then it's ok but if she hasn't then you aren't allowed to look inside.
Ryueki: I'm her friend so it's alright.
Kaneki: even if you're her friend you can't look inside the diary don't you know some people would keep their secrets even from their friend?
Ryueki: whatever I'm going to look inside anyways. give that to me Itsuki.
Ryueki was about to open the diary.
Ryueki: let's see-
Shino: HEY! GIVE THAT BACK!
Ryueki:!!!
Shino arrived and took her diary back.
Shino: Ryueki-kun why did you try to look inside!
Ryueki: i thought it was fine.
Shino: WE MAY BE FRIENDS BUT THAT DOESN'T GIVE YOU THE RIGHT TO LOOK INTO MY STUFF!
Miku: Ryu-Onii you made her mad.
Yuuka: you shouldn't have done that.
the girls arrived.
Ryueki: sorry I won't do it again.
after seeing that happen Kaneki was a bit relieved and thought to himself.
if he had opened that diary i would've made everyone sleep then erased his memories of seeing the diary.
Yuta: just for you girls to know Kaneki tried to stop him.
All the girls were actually surprised at it and Ryueki gave Kaneki a stare which no one noticed.
but in order to not get suspected he said something.
Kaneki: don't get it wrong I didn't do it because I was concerned I just didn't want to hear some weird shit that's in that diary.
Everyone somehow believed that.
things went back to normal and those 3 girls were flirting with Ryueki again.
6 minutes later~
Mitsuha: Hey Higanbana-kun someone is here to visit you!
Everyone in the classroom was shocked hearing Kaneki had a visitor then.
a woman with white and blue hair, Blue eyes, bright white skin and a blue sweater came in the room.
everyone was in shock seeing a pretty woman visiting Kaneki.