A Detective In Her Own Right
CAST
Kensaku Matsuyama (54), owner of the mansion.
Black hair, brown eyes, 174cm, 85 kg.
Maria Matsuyama (51), his wife.
Blond hair, green eyes, 172cm, 72 kg.
Hiroshi Matsuyama (27), their son.
Brown hair, brown eyes, 186cm, 78 kg.
Naomi Matsuyama (24), their daughter.
Black hair, green eyes, 168cm, 59 kg.
Akari Nanakawa (17), their maid.
Black hair, brown eyes, 169cm, 65 kg.
As well as the rest of the normal Detective Conan cast.
Chapter One - The same procedure as every case
It wasn't exactly one of my best ideas to track along, Sera thought to herself, putting one of her cards on the pile, upside down. "Jack!", she announced. To her left, Conan was looking doubtfully at her. He had been the reason she had come along, when some rich guy had invited Kogoro Mouri and the others over for a stay at his mansion, as she had considered it another opportunity to find out more about the mysteries that surround him. However, the only thing she had been able to find out was that he was awful at playing cards. Almost as if to prove her reasoning, he now said "Doubt it!". Grinning, Sera revealed the Jack of Diamonds she had put there, causing Conan to grimace, as Ran pushed the entire pile of cards that had accumulated over to him.
As they continued playing, she sighed to herself. Nothing interesting at all had happened since they had arrived here; Kogoro and the landlord, Kensaku Matsuyama, had managed to get themselves drunk by eight o'clock and the landlord had retreated back up to his room, accompanied by his wife. She later came downstairs again, announcing he had decided to take a bath, and, in order to make up for her husband being missing, had brought some sandwiches from the kitchen. Now Sera was playing cards with Ran and the little boy, while Kogoro was leering at the landlord's wife and daughter, who were sitting together with the family's son in another corner of the room, waited on by the maid, Akari Nanakawa.
Turning her attention back to the game, she noticed Ran had just managed to get rid of her last card, leaving only herself and Conan in the game. Luckily, Ran's last card had been a 7, which she could easily top with her own last card, the Queen of Spades, making Conan lose the game. Grumbling, he was about to reshuffle the cards, when Ran glanced at her watch. "Look at the time," she exclaimed, "already nine o'clock! Conan, you should have long been in bed! Hush, off you go!". And under Conan's protest, she dragged him away from the table and towards the stairs.
At the same time, the daughter of the family, Naomi Matsuyama, stood up from her table, turned around to her other family members, and announced she'll be checking on her father. Her mother, Maria Matsuyama, decided it'd be a good time to fetch more of the sandwiches, which had run out, and left for the kitchen to bring some more of them.
As they left the room - Ran with Conan towards the west wing, where the Mouris would be staying, Naomi towards the east wing, where the family resided, and Maria through the door towards the kitchen, Sera took up the playing cards, forming them into a pile and absent-mindedly shuffling them, until Ran, and a bit later, Naomi - who announced the landlord was still in the bathroom – returned, and joined her for yet another round.
* * *
After what felt like three more days of card-playing, even though it had been only a single hour, the family's son, Hiroshi Matsuyama, remarked it'd probably be a good idea to look after his father, joking that the old man might have forgotten that he had guests at his house.
Sera didn't exactly pay attention to him; she was completely focused on the game. Since Conan had left, it had been
her who lost all the games, as Naomi was a skilled player, and Ran seemed to never run out of luck. She therefore didn't look up immediately when Hiroshi returned, only when she heard him shouting, "Father's
still in the bathroom, and he won't respond, no matter how much I knock!", she turned around.
He was standing in the doorway, clearly upset about his father's uncourtly behaviour. Naomi didn't seem surprised: "That happened to me too, when I knocked earlier, he didn't respond either; I think it's due to the water running, it's hard to hear someone talk outside when it does. He probably-"
However, her brother interrupted her: "No, no water was running, it was completely silent inside the bathroom, no matter how much I knocked or shouted. The door was, however, still locked, and his slippers were still in front of the door."
Sera was surprised. "He left his slippers in front of the door? Why'd he do that for?". "It's a habit of him.", Naomi replied, "He always leaves his slippers there. If I recall correctly, it was because he once used to leave in a house where there was only one room for both the toilet and the bath, and he never got rid of that habit later."
"Anyway,", Maria said, "we should probably check on him. He might have passed out, drunken as he was. I knew I shouldn't have left him alone!"
When they arrived at the bathroom door, they found that Hiroshi had indeed spoken the truth. The door was locked, with the slippers in front of it. "Dear!", Maria shouted, "What's going on? Are you alright?". However, no reply came form the bathroom. "I fear something happened to him;", Naomi said worriedly, "doesn't someone have a key?". "I have one,", Akari replied, "here it is.". "Father,", she shouted, "we're coming in!". When no reply came, she opened the door.
They were greeted by a strange scene. Kensaku was lying in the bathtub, fully dressed. His clothes were wet, even though there was no water in the tub, and he didn't move. Sera felt that something was off. Having learned from her experience of being around the Mouris, she, before anyone else could react, rushed into the room, over to the tub and felt for the man's pulse. As she had expected, he had none.
"Stop!", she shouted towards the people at the door, "Don't enter!". "Why not?", the daughter inquired, "What's wrong?". "He's dead,", Sera replied, "and this may well be a crime scene!".
There will be two more chapters published to this story:
Chapter II around New Years Eve, which will contain the clues and the investigation, and
Chapter III, around January the 6th (Epiphany), which contains the solution to the case.
The time between the cases is meant for guessing and trying to figure out who did it and how
I heard from Prof (::)) that you liked (classical) music so I decided to make an AMV for you. It's my first time creating one, though, but I hope you'll like it especially the music I used. 
".
