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It was not much after the disaster happened, Kunikida pierced by ame no gozen and dying, his body turning into something unidentified that tripolar singularity inhaled. Dazai and Chuuya arrive to the Yokohama airport by helicopter looking around at the mess.
“Oh something is terribly wrong..” Chuuya murmured under his breath as he immediately noticed the emptiness and the way everything was destroyed.
But Dazai didn’t seem to care, he has noticed Kunikida’s notebook and immediately ran up to it taking it into his hands.
“Kunikida-kun!! Kuuniiikiida-kun!!” Osamu shouted looking around, it was really unlike Kunikida to leave his notebook behind but Dazai didn’t seem to really think about it much, he just wanted to see his partner as he deeply believed he was safe and alive somewhere.
Dazai kept yelling until the tone of his shouts and the way he was calling out changed, instead “Kunikida-kun!” It turned into a worried “Doppo?” Until he saw someone running towards him.
It was Atsushi trying to get to Dazai and Chuuya quickly and he didn’t stop the moment he reached them, he grabbed both of them and ran off into a safe place somewhere between the destroyed buildings.
“What the hell kid?! Do you want to give us a heart attack?!” Nakahara snapped but quickly calmed himself down, he knew that negative emotions weren’t needed now since the situation didn’t seem too pleasant.
“Kid where’s everyone? What happened here why is this place such a mess?” Chuuya asked but Atsushi didn’t get to answer as Dazai interrupted him.
“I have better question, Atsushi-kun what happened to Kunikida? Why did he leave his ideals behind?” Osamu gestured at the notebook that was in his other hand as his voice had much more worry in it now.
“Long story short well, Fyodor appeared out of the person that controlled vampirism and he stabbed Fukuchi with two swords that turned him into something called tripolar singularity? And it destroyed the airport and killed the girl Teruko from hunting dogs” Atsushi responded trying to avoid Dazai’s questions, he still wasn’t okay after what he have seen.
But Dazai seemed dissatisfied with the answer, he needed to know what happened to his partner, he was worried like hell that was someone close in his life, his best friend, his partner, he trusted him.
“Atsushi damn it what happened to Kunikida!” Osamu suddenly snapped grabbing Atsushi by the shoulders and shaking him but quickly Chuuya grabbed him and pulled him away holding him in a tight grip.
“Calm down mackerel don’t jump at the kid like this!” Nakahara scolded hitting Dazai in the back of the head getting a yelp out of him.
A worrying silence fell between the three of them before Atsushi took a deep breath and hesitantly began talking.
“Mr. Kunikida he..” Atsushi looked away swallowing thickly, it wasn’t pleasant for him to speak it out loud. “Tripolar singularity got him.. he died.. I’m sorry Dazai-san” Atsushi said in a half whisper but enough for both Dazai and Chuuya to hear.
It was enough for Dazai to suddenly have tears in his eyes as he fell to his knees, again.. again he has lost someone but this time he was too late to say the goodbye. Dazai clutched Kunikida’s notebook close to his chest as even Chuuya got worried when he saw Dazai let his emotions go like that.
After all of this, after what happened in the merusault Dazai wanted to just come back to the Yokohama and see his partner again, yes he may have annoyed him a lot and they bickered a lot but there was that trust between them, those peaceful moments sometimes as they fell asleep together watching a movie after Kunikida took care of Dazai after one of his attempts or depressive episodes, that unspoken love and trust.
“No Doppo couldn’t-.. he wouldn’t just die without a goodbye-.. he couldn’t just die he’s-..” Osamu stuttered out before an incoherent sob left his lips, both Chuuya and Atsushi got down and hugged Dazai trying to comfort him, they still had to solve the problem of Fyodor and Tripolar singularity and Dazai was very much needed.
“Hey mackerel.. calm down maybe if we get rid of them your Kunikida will be back, don’t break down like this just yet” Chuuya tried to somehow comfort or reassure Dazai but it didn’t seem to work much at first until Dazai’s mind processed it, he nodded and as they all made sure everyone was fine they went to do something about the current situation.
A couple months later they managed to get rid of Fyodor and tripolar singularity. A lot people died during it but the biggest loss were people from Armed Detective Agency. Kunikida did not come back after tripolar singularity was fought off though he was able to be seen blurry for a small moment, like a ghost. Fukuzawa, Ranpo and Tanizaki unfortunately died too as after all of this Dazai, Atsushi, Akutagawa and Yosano had to be hospitalized as Yosano was too exhausted to use her ability.
At the funeral of the Agency members, Kunikida, Fukuzawa, Ranpo and Tanizaki people who cried the most were probably Atsushi, Kenji and Kyouka, Dazai also shed a tear but only did he break down when he and Chuuya came home because since the Agency stopped existing due to lack of leader Dazai moved in with Chuuya and slowly developed a closer relationship through the next years.
Mori did not have to pick an Agency member because Dazai himself came back to Port Mafia mostly at the plea of Chuuya and since he also didn’t want the kids to be picked out but Dazai refused to kill unless it was to protect people like he promised.
Dazai have been visiting Kunikida’s grave every couple of days crying on it, telling how his days have been, sometimes getting drunk here only for chuuya to get him back home forcefully for police to not take him but whenever Dazai visited the grave he felt as if Kunikida was still with him, as if his ghost still sat here with him and listened to him.
Over the years Kunikida’s grave gained some decorations but one of the most cared for one was the picture of Kunikida smiling on a free day while surprisingly having fun with dazai. Dazai began to wear a red ribbon and he grew out his hair as Kunikida’s notebook was always around with him. On some special occasions he’d put his hair into ponytail and get into one of Kunikida’s suits even after all those years.