First and foremost, thank you for playing this, sensei. So far, you're the only one whom I've watched that completely didn't use the phone booth and the apartment phone to grab some hints for the pictures. (That's what the 4-digit codes were for. Once you cover the locations that matches the codes, it automatically disappears.) This is version 1 of the game, so maybe they'll make the instructions more prominent on its next version, since a lot of players tend to miss the instructions inside the phone booth. As for the story, here's my guess: Your character was a salaryman. He's been too busy with work that he's got little time for his daughter. The last that they did spend some time together was in the park, but an incident occurred with Mitsuka banging her head hard (the intro). She really didn't die in the park that day, but that hard bump caused major complications in her brain. And so, when the father didn't come home right away after she called about her head hurting, he came home to his daughter dead on the floor. That moment left a grave scar in his heart and mind. He couldn't forgive himself for not being there for her. And that scar made him mentally unstable. While being in the park, he saw a girl who somehow reminded him of Mitsuka, and that's Manami. He begins to lurk around her, using the outfit of Mikey which his daughter loved. Eventually, as shown on a video, he kidnaps her and takes her into his apartment. I don't know how long was she kept there, but there came a point where the man realized that she can never replace his daughter. His frustration turns to rage and he ends drowning her in the tub and then, butchering her limbs with a chainsaw. (I based this from the multiple pictures that you took of her, either missing some of her limbs or depictions of her coming out of a puddle of water. When you were "drowning" in the phone booth, that was her way of showing how much she has suffered. And there's also that supernatural image of all those plastic bags riddled with bugs in the park, as if containing body parts in each.) Her death was within the 13 days that allows you to upload those images. In the start of the game, if you pay close attention, he said that his daughter died in the park.... but then the game presents a missing poster. That alone would show that something is very wrong with the narrative already. We cannot trust the father's state of mind. After Manami's death, her soul was not at peace. That is why the father ended getting that digicam. To get rid of his "daughter's" soul that kept pestering him. His mind has been so demented that he still think that Manami is still his daughter. I don't know who the female Mikey is, but if I had to guess, it might be his wife (I assume she's been dead, since Mitsuka was always left uncared for.) That's why she attacked you in the bedroom, to show her intense disapproval. As for Mitsuka herself, there are people that theorized that the father had opened a portal for her soul to go through, the moment you uploaded her picture online. Her death was of course past the 13 days, hence the error messages, but as you've noticed, it still supernaturally went through. And by opening that portal, it enabled Mitsuka to put closure to the entire thing, by calling the cops on her father and bringing peace to Manami's soul as well.