What you recognize I don't own and since I didn't exactly get to see the entire series the characters might seem OOC

well it had been several months since the death of Kindaichi and Miyuki, Kenmochi and Akechi had essentially formed a team whenever possible to help solve murder cases. But the one case that was the most important to them was also the hardest one to solve. Currently they were all at a coffee shop having nothing better to do that day so they were simply remembering Kindaichi and thinking about what he would have done in the recent cases they were involved in, plus past cases as well

(suddenly gives off a small laugh) "that was an interesting time"
"what was Miyuki?"
"remember when he was thought to be a murderer?"
"don't remind us he had to work hard to avoid us at all times and eventually proved his innocence"
"true enough, who knew that eventually he'd be the one murdered"
(sighs) "right about now I would take his annoying phrase of 'in the name of my grandfather I will solve this case' if only to hear him alive"

they all get quiet and then Akechi starts to chuckle at a thought"

what is it Akechi-san?"
"remember the wax museum murder case Miyuki?"
"yeah, Kindaichi-kun was panicked when he saw your wax beheaded, they broke the door down when you didn't answer"

"in my defense I was drugged, but that wasn't what I thought was funny. You see at one point before I pointed out a flaw he actually accused me of being redrum"

"you're kidding"
"no I'm not but I applauded him for his suspicions and the fact that he thought about the fireplace"

well as was bound to happen they all eventually thought about the day Kindaichi was murdered in front of plenty of witnesses too

seven months earlier

"why did these two have to come Miyuki?"
"because I thought the three of you would enjoy the mystery movie and I wanted to go out so I told them I was paying for their tickets, which I am"

"fine fine, but to me it's like you wanted chaperones"

and so they went to the theater when suddenly Kindaichi noticed the glint of a scope just in time to save Akechi from being killed. Kindaichi pushed Akechi out of the path of the bullet only to take it himself in his left lung. The three of them knelt in front of Kindaichi and Akechi revealed to him before he died that he knew he knew someone was trying to assassinate him

"blast it Kindaichi I knew someone was after me, I was prepared with a vest and blood bag"

"still...glad...you're...safe...police...need...you"

the ambulance arrived five minutes later but by then it was already too late Kindaichi was dead and the assassin had disappeared in the confusion. But little did the assassin know, three people would now constantly be on his tail waiting for the right opportunity to arrest him

present

"so what was it I hear about another murder case at your school while I was in Osaka?"
(scoffs) "that case, the one that happened three weeks ago? I solved it within two hours of when school would normally end, it was pitifully easy. Kindaichi-kun would probably have solved it sooner than I did"

"so who did it?"
"a fellow classmate of mine, wanted payback for her boyfriends death...she blamed his family for him committing suicide"

"how did you figure it out?"
"easy I knew the two of them were pretty close, had heard about the suicide and when I knew the victims name I put it all together, probably the only reason it took me as long as it did was that the police were stubborn about giving me the victim's name seeing as how he was new to our school"

"how new?"
"parents decided to finally send him to public school instead of a private school he'd only been there for two weeks"

"relation to boyfriend?"
"older brother by a year, family was testing if he could go to public school despite his medical condition"

"hey how did you find that out? I didn't know until late that evening"

"simple when I stated who it was she mentioned the victim's condition"

"then that makes sense"

"by the way one of the officers stated that you said a phrase that he was unfamiliar with"
"what?"
"in the name of Kindaichi's grandfather I will solve this case"
"oh I didn't even realize I said that"

"hey Akechi-sempai some of the Osaka officers said I said that same phrase while working with them"

they all look at each other and Miyuki is the first one to speak

"Akechi-san you don't think..."
"actually I do, I might also be saying it unconsciously"

"well like I stated earlier the case was pitifully easy"

suddenly though they heard a scream so they ran outside and discovered a body in the middle of the street

"nobody move"
"someone call for an ambulance and the police"

and so the police arrive and start taking statements and then Miyuki states something that to most people is obvious but at the same time isn't

"the culprit is still here"

she looks two her two accomplices and they nod their agreement and at the same time

"in the name of Kindaichi's grandfather we will solve this case"

and so they start to think hard. Two days later they gathered the main suspects together after two more had actually died and laid out their case and proved the murderer and also revealed the alibi tricks too