Disclaimer: I do not own the movie "Gyo: Tokyo Fish Attack," or the manga it is based on, "Gyo." Neither do I own any aspect of the Cthulu Mythos. No profit is being made from this story. It is written for enjoyment only.
Author's Note: Normally I only start posting when I am close to finishing the story. This time I'm making an exception and posting only what I've written so far. As such it will be a long while before this story gets updated but I fully intend to return to it eventually.
Tadashi leaned back on his towel and sighed contentedly as he felt the cooling breeze on his skin. It really was a beautiful day, with a clear blue sky and warm sunshine. While he didn't much like the sea itself he had to admit he was glad to be here, on a white sandy beach on the coast of Okinawa. Of course he wasn't actually here for the beach, not at all. He was here for one reason only.
Tadashi smiled as he turned his head and gazed at the beautiful young woman in a white bikini laying next to him, his fiancée Kaori. Her long brown hair shone in the sun and her lovely face wore an expression of peaceful happiness.
As long as they were together he didn't mind where they were. He was very glad he'd been able to get time off from his job as a radio DJ to come with her on this holiday to celebrate their upcoming graduation. Kaori had also invited her friends Erika and Aki but both of them had declined. No doubt Erika hadn't come because Tadashi's presence would deter any would-be paramours and Aki didn't want to be a third wheel. Privately Tadashi was pleased. Not only because he and his fiancée could be alone together, but also because he suspected that the two of them were false friends that didn't care about Kaori as much as she cared about them.
She has such a good heart he thought. That's one of the things I love about her, she sees the best in everyone.
Kaori opened her light brown eyes and smiled back at him. She raised her left hand and the silver engagement ring on it gleamed brightly. He brought his own ring up in response.
"Tadashi" she said warmly before leaning over and kissing him. He savoured the feeling of her soft lips against his own. After a few moments she drew back to speak.
"Will you be okay if I go snorkelling for a bit?" she asked.
"Sure" he replied. His smile faded as he added, "but please be careful Kaori. There are all kinds of dangerous things in the water. Sharks, jellyfish…"
"You worry too much Tadashi" she said gently. "I'll promise I'll be careful."
She gave him one more kiss and then stood up. He watched as she waded into the bright turquoise ocean until she was treading water. She then put on a diving mask with a snorkel and began swimming away.
Kaori stared in fascination at the sea bed beneath her. It was a wonderful sight, with colourful tropical fish swimming all around and coral formations in a bewildering variety of shapes and colours. The warm water was clear as crystal, allowing her to see everything perfectly.
It's so beautiful here she thought. I should help Tadashi learn how to swim so he can join me when we come here again.
Just then she noticed something moving in the midst of a large cluster of coral. Her curiosity piqued she took a deep breath and dived, swimming down to the sea bed. As she got closer she was able to make out some details. She saw glimpses of greyish-green scales and bulbous yellow eyes. At first she thought it was some kind of very large fish but then she saw something that made her eyes widen behind her diving mask.
Wait… did I imagine it or did I just see arms and legs?
She tried to get a better look but before she could do so the creature shot away in a sudden burst of acceleration, leaving a trail of bubbles in its wake. Kaori peered after the bubble trail but she couldn't see any sign of the creature. Realising she was running out of air she swam for the surface.
Still laying back on his towel, Tadashi observed Kaori dive underwater and wondered what she had seen. As the seconds ticked past and she did not surface he started to worry. Just as he was on the verge of panicking he saw her head emerge from the water. He sighed in relief and stood up. As she came ashore he ran over to her.
"Are you all right Kaori? I was getting worried."
"I'm fine" she replied. "I saw something very strange down there."
"What was it?"
"I'm not sure. It was hiding in the middle of some coral and then it swam away very fast. I didn't get a good look at it but it didn't seem to move like a fish."
"That does sound strange. When we go home I'll talk to my uncle about it. Maybe he'll have some idea what it could be."
Kaori nodded. "Anyway, would you like to go back to the summer house?"
"I don't mind" Tadashi replied. "We can stay a little longer if you like."
She frowned slightly and shook her head. "No thank you. I'd like to go now. Something about that creature gave me a really bad feeling."
"Don't worry Kaori" said Tadashi as he took her hand. "Whatever it was it's gone now."
"Thank you Tadashi" she said, her expression brightening. She kissed him again and then they began gathering up their things to leave.
As the young couple walked away from the beach neither of them looked back. Had they done so they might have noticed something rise up from the sea. Large yellow eyes glowed faintly despite the sunshine as it watched them depart. Once they were gone it sank down out of sight, leaving no trace it had ever been there.