Location: rimuru and rinaru mansion

We see rimuru and rinaru seating in there chairs with a curious guess send by the mainland she is rimuru second student in the lab

Rimuru: so your send by the mainland

???: indeed however the emperor also ordered me to join your fleet

Rinaru: is so post we are the 13 captain ships under the emperor Elite fleet

Rimuru: so who else's is with you

???: nemu and 2 other they really want to meet you

Rimuru: is it theme?

???: yes it's theme

Suddenly they hear something heading there way then the burst of the door and two figures came in with sweat all over there face

Rinaru: you two really miss her right shuna ,shion

The two figures were shuna and shion they were apart of rimuru fleet during the first war with the sirens they then became assistant when rimuru became the flagship

Shuna: it's good to see you rimuru sama and rinaru sama

Rimuru: it's good to see as well you two

Shion: I shion will be returning as rimuru number 1 assistant and secretary

Rinaru: sorry shion I'm the assistant of big sis but you can still be her secretary and my as well

Shion: as you wish lady rinaru

Rimuru: now back to the discussion I want you,nemu, shion and shuna at azur lane also I want you to send a message

???: my I ask why?

Rimuru: I want you to study about the black mental cube and the upcoming battle

???: a black mental cube you mean the same cube that we warship are made

Rimuru: yes but it was given by a siren also the 1st carrier division are the ones who knows this.

???: well I suppose I have no choice but to accept it

Rimuru: thank you also do not engage just study the cube if anything changes you have ave my permission to attack also atago of fleet of the fog will be joining with you along with kirishima

???: as you wish head captain of the Rising star rimuru tempest or should I say teacher

Rimuru: I'm counting you IJN Mayuri
(Are mystery guess is rimuru second student after Garu during the Sakura republic her name is IJN Mayuri)

Location: azur lane

We then see still sleeping she then dreamed what happened yesterday she was then awake by Belfast she wears her uniform and goes down stairs to eat breakfast but

Enterprise: I don't think I can finish this alone

Belfast: well if you need assistance would be more than delighted to join

We see vestal looking around to find a seat with hornet she saw enterprise eating breakfast with Belfast

Hornet: hey so what's up

Vestal: nothing um it seems to me enterprise staring to open up a little bit

We then see enterprise and Belfast walking in the hallway she was greated by repulse

Repulse: hello enterprise how are you today

Enterprise:hello repulse I'm doing well thank you

They then hear repulse big sister renown coming out

Renown: repulse I told you not to run in the hallway

They then heard Cleveland calling enterprise and Belfast

Cleveland: Enterprise hello

They then head towards Cleveland

Cleveland: I've never introduce you to my sisters haven't i come on girls say hi

Colombia: hi I'm Colombia  second class of the Cleveland class nice to meet you

Montpelier: I'm  Montpelier third ship of the class thanks for my sister

Denver: and I'm denver forth ship of the class it's an honor to meet a legend like you

Enterprise(smile): thanks nice to meet too

Cleveland: see I'm proud of these lady

Montpelier: still we can't compare to you not yet

Denver: your number one Cleveland we just try to keep up

Cleveland(embarrassed): come on I told you to stop saying stop like that it's embarrassing

Enterprise: it's sounds like you really love each other

Cleveland: oh yeah what happened to the thing we recovered from Sakura empire

Belfast: right we've much to discuss

Location: azur lane meeting hall

We then see a secure box inside was black mental  and everyone was shock

Enterprise: a black mental cube

POW: the Sakura empire secret weapon based on siren technology

Cleveland: couldn't we use this it might neutralize those mass produced siren and those new class of siren that we face

Akashi: the orochi control the siren ship the cube is just for support but those siren ship we face I never see them before

Hornet: our said there building something I guess this massive warship orochi was it

Vestal: what's the relationship between the orochi and this cube

Akashi just shook her head

POW: what we do know is that a siren gave them this cube and akagi work close with that siren

Belfast:well if that case Sakura empire is engaged in a vast deception

Akashi: akagi this will be a catastrophe

While everyone was thinking enterprise notice the calling her name she then touch the cube she was then teleport to the ocean she then look at her reflection that changes

She has a short hair torn clothes and a long cape she was brought back by Belfast by calling her name

Belfast: enterprise

Enterprise: hah

Belfast: are you feeling all right you seem distracted like we lost you for a moment

Enterprise: yes I'm alright it's nothing

??? Oh really the way I see it it's seems you felt something

They then turn around to see four figure standing behind one has two horns with pink hair wearing a shrine maiden outfit the other has one horn purple hair wearing a military uniform the other one has a dark purple hair a short black kimono, which extends to mid-thigh, with a white nagajuban underneath and the last one she has face paint and hat she has gold eyes and ordinary blue hair.

Imagine her hair is blue

???: don't worry were not here to fight you all my name is IJN Mayuri class of cruiser

Cleveland: okay so what do you want?

Mayuri: it's simple really I was send here to study the cube that you have

Hornet: and what if we say no?

Mayuri: then the entire fleet that you face yesterday will destroyed this base of your within seconds

Everyone was shock to hear on what she said that the fleet that fight yesterday are surrounded the island at long distance but they have no choice but then

???: who send you here IJN Mayuri

Mayuri looks at the and recognize her

Mayuri: well if  isn't HMS Chloe the first flag of the royal navy

Chloe then point her sword in front of Mayuri

Chloe: I'm asking you again who send you here

Mayuri: it's rimuru

Chloe was shock to hear that rimuru was the one who ordered her to come maybe it's about the cube rimuru has no trust about the cube

Chloe: you can study it but you will not take the cube

Mayuri: don't worry I have no interest for this black cube not even rimuru

While Mayuri and nemu studying the cube shuna walk towards Chloe and greated

Shuna: it's good to see Chloe

Chloe: it's good to see you to shuna and shion

Shion: you change didn't you

While they still talking Mayuri discover something that's it's remarkable from the cube

Mayuri: how fascinating this cube is very interesting

Hornet: what do you mean?

Mayuri then and gave a big smile showing her golden teeth

Mayuri: this cube has some elements the same as the mental cube we warship created but some of the elements is very interesting to me the black mental cube has the property as the mental but one thing that this cube have is very interesting

Enterprise: what is it then that this cube in very interesting to you?

Mayuri: It has the ability to gathering data

Chloe: gathering data?

Mayuri: yes this cube has the ability to gather data using mass produced siren and as warship it's like doing an espionage mission

Everyone was shock including Chloe that the cube is gathering data from there battle with the sirens and Red axis

Mayuri: well my work here is done will be taking are live now

Chloe: thanks and sorry pointing a sword at you

Mayuri: no need oh by the way rimuru and rinaru send a message to all azur lane

POW: what is it?

Everyone was listening on what rimuru and rinaru message to them

Mayuri: in a couple of from now the Sakura empire fleet will take back the mental cube they will be lead by the first carrier division akagi and kaga

Chloe: so will rimuru and rinaru participate

Mayuri: rimuru and rinaru were ordered by nagato to protect the Sakura empire her cannot be deployed unless you have nagato permission also the four of us are part of rimuru fleet she also is the captain of rising star

Chloe: rising star you mean the 13 ships that the emperor chosen

POW: your majesty what's this rising star?

Chloe: they 13 ships pick by the emperor himself also rimuru is the leader and captain of rising star making her captain of the fleet of the Sakura mainland

Mayuri: what she said is true I'm the captain of 12 division also leader of research institute and this is nemu my assistant she's a destroyer

Cleveland: can I ask something? If you're the 12 Captain how's the first?

Mayuri: rinaru tempest is the 1st division she's a shy one but she's a great flagship that's why in the sakura empire they call princess because of her beauty she's only love is her big sister rimuru

Nemu: Mayuri is Time

Mayuri: well then it's time for as to go

Enterprise: thanks also thank you for warned us for this battle waiting a head

They then leave Mayuri, nemu, shion and shuna left also fog fleet withdraw

Enterprise: all right let's prepare for this upcoming battle

Chapter end