Koneko after merging all the pieces that she just got based on what Haoh and Raynare said while also checking her sister's behaviour, felt too many emotions...
But the most distinguished one was anger. Anger towards herself for not knowing the suffering her sister went through and anger towards her sister who abandoned her...
Koneko : Then why!!! Why!!! Why did you vanished and left me all alone...
As she spoke, her anger could be felt with each word causing Kuroka to be a loss for words...
Although Koneko had already figured it out, she wanted to hear it from her elder sister mouth...
Kuroka : I... I...
Koneko : Answer me!!!
Koneko raised her fist and punched at her sister hitting her in her abdomen as she flew outside of the window...
Le Fey : Kuroka!!!
Haoh : Let them be...
Le Fey : Huh???
Haoh : Didn't you notice?? Koneko only holds anger directed both at herself for being too weak at that time to help her Sister...
Haoh : And at Kuroka who abandoned her...
Le Fey : But even so...
Haoh : What I'm more concern is that the students will get entangled in this...
Le Fey : I created a barrier when Kuroka broke through the window, something similar akin to another dimension...
Raynare : That explains why I passed so many rooms through the walls and saw no one...
Haoh : Let's go we should follow them...
Le Fey : But you said..
Haoh : I said that to stop you from attacking I never said we can't follow them...
Both girls raised their mouths forming an O, as they quickly went outside only to hear bangs here, bangs there...
They tried to follow the sound and soon enough they found them...
Koneko was panting while having tears in her eyes while Kuroka was down on the ground inside a crater with blood stains as she put zero resistance in taking them...
Koneko : Stand up and fight!!!
Koneko watched as Kuroka took all her hits with a smile on her face while still getting up and getting more...
She could see that each time she hitted her she smiled more and more causing her a deep pain inside her...
Koneko started running and jumped upwards as she was ready to punch with every inch of her might only to see Kuroka at the last second closing her eyes and lightly letting out a smile...
BBBBBAAAAAAAANNNNNNGGGGGGG!!!!!
A big crater was created around them along with spider web fissures that covered 20 meters deep and almost 50 in diameter shocking the three of them...
Due to the hit on the ground, a dust cloud was raised and they waited till it was cleared to are what happened...
However before they could see, they heard the voice of Koneko that was partially sobbing as she was choking to make the words out of her mouth...
Koneko : Why... sob.. why did... sob... left me.. alone...
Koneko felt someone hugging her and caressing her hair, she recognised her smell and couldn't help but sob lightly louder...
Kuroka : Shirone, I'm so sorry...
Kuroka : Kuroka nee-chan in bad sister nya...
Kuroka : She left you all alone so that those madmen could never bother you and it worked nya...
Kuroka : Rias-chan found you nya...
Kuroka : However even then I always came to see your well being and beat the bad guys hunting you nya...
Koneko : But... but... I only... wanted... my big sister... sob.. sob...
Kuroka : You are my little cute Shirone nya... No matter what other people are saying for me I will always protect you nya...
Koneko : Uwuuuu.... Aaaaaauuuuwwww.....
The three people that at first wanted to see how this will end, had an agreement and returned back when they felt turning a tad bit awkward...