Because I love this couple so much, here's another Chiaki/ Kotoha story.
It's set a year after the final episode & even though I know there are various reunion stories out there, this is my own, with Chiaki & Kotoha as the central characters
Act I: If This Isn't Love
Kotoha looked up at the stars and sighed. Tomorrow she was heading back to Tokyo to celebrate the anniversary of defeating the Gedoshuu. Everyone, including Kaoru, was going to be there. Kotoha couldn't believe that it had almost been a year since she'd seen any of them, and her heart ached every time she thought of them. She missed all of them so much.
Over the last year, they had all stayed in contact though letters and phone calls, but to Kotoha, it wasn't the same as talking to them in person. She treasured every phone call and kept every letter. Before they'd parted, Kotoha had thought that she'd have stayed in connect with Mako best, constantly phoning each other, catching up of the gossip from different sides of the world, but, Kotoha was surprised to find, she was constantly phoning and writing to Chiaki. Though at the same time, she wasn't surprised, they were after all of a similar age, it made sense.
The more she talked to Chiaki, the more she found that she missed him and every day, she longed to talk to him, to see him. Kotoha had often thought of jumping on the train and going to Tokyo, just to see him. But she couldn't. She had school and her sister, Mitsuba, was still unwell. But that didn't stop her from dreaming of seeing him again. She always wondered what it would be like, what she would say. Would he have changed?
Kotoha shook her head. She was thinking about him too much again. She kept doing that lately, and it was annoying her. She didn't know why Chiaki kept popping into her head at random times and how she could just think about him for ages. His eyes, his smile, his hair, his laugh.
"It's getting late," a voice behind Kotoha said, making her jump.
Kotoha turned to see Mitsuba standing in the doorway. "What?"
"I said, it's getting late," Mitsuba repeated. "You've got a long journey tomorrow. You should be getting some sleep. You don't want to see your friends looking tired, do you?"
"I guess not," Kotoha muttered, starting to walk towards Mitsuba.
"What are you doing out here anyway?"
"Thinking about what?"
"Things." Kotoha looked at her sister. Maybe she'll know why I keep thinking about Chiaki, she thought. "Nee-san," Kotoha began, "can I ask you something?"
"Well, you know how I have my reunion tomorrow."
"Yes, you barely talk about anything else." Mitsuba smiled.
"Well, I've been thinking about it a lot. I don't mean the reunion, but I find that certain things, people keep slipping into my mind all the time and I don't know why."
"You haven't seen your friends in almost a year, of course you're going to keep thinking about them."
"Yeah, but I keep thinking about one of them more than the others. I can't stop thinking about him."
Kotoha's sister smiled when she heard the word 'him'. "Is this the same guy you're constantly phoning and writing letters too?" she asked.
"Yes and when I put the phone down, I find that I miss so much that I want to cry. I find myself missing everything about him and I don't know why."
"Kotoha, come in and sit down." Mitsuba gestured to the sofa. Kotoha walked into the house and sat herself down, while Mitsuba slid the door closed.
"Nee-san, what is it?"
"Kotoha, I'm starting to think that you might be in love with this guy," Mitsuba said, sitting down.
"What? I can't be in love with Chiaki! I'm not!" Kotoha cried.
"It's alright to be in love," Mitsuba said.
"I know, but that can't be right. I can't be in love with him. We're comrades. It isn't allowed to be more than that."
"Listen, you can't help the way your heart feels and from what you've told me, it's pretty obvious that you love him and anyway, you're not comrades anymore, so what's stopping you?"
"Wh – I – I can't!"
"Because, because I just can't. And what if it's true and I tell him and he doesn't love me back, what am I suppose to do then?"
Kotoha's sister sighed. "Trust me." She stood up and kissed Kotoha's forehead. "It'll work out fine." She started to walk out of the room.
"Wait," Kotoha called, "you can't say that I love Chiaki and leave."
"Just trust and follow your heart," Mitsuba replied. "Have a safe journey." And with that, she left the room.
Kotoha sank back into her seat, trying to take in what Mitsuba had told her. Maybe she was right, maybe she was in love with Chiaki. The more she thought about it, the more it actually made some sort of sense. The constant phone calls and letters, how she was always thinking about him. Kotoha smiled. The thought of being in love had never crossed her mind, though she had often wondered what it would be like. She always knew that there had been something between them, ever since the episode with Zuboshimeshi. But until now, she had never thought of their relationship being nothing more than friendship, but love? Though it made sense and at the same time inconceivable, the fact that she could actually be in love already, it made her heart pound and she couldn't stop smiling at the thought.
The next day Kotoha found herself sat on a train bound for Tokyo. As she stared out at the passing scenery, her heart was now filled with anxiety and worry. Today, after almost a year, she was going to see Chiaki again. Unlike the previous night, where she had been imaging the two of them together as a couple, Kotoha was now picturing Chiaki rejecting her feelings for various reasons, or that he was nothing like the person she had know back then. The more she thought, the more worried she became. She was also dreading the thought of telling him how she felt and was constantly debating whether or not to say anything. And then she kept wondering what would happen if he did reject her. She couldn't stay and enjoy the reunion, even though everyone would be there, seeing Chiaki constantly would be too much for her to bear.
A voice cut across Kotoha's thoughts, startling her. "Now arriving at Tokyo station. Please ensure you have all of your belongings."
Kotoha stared out of the window, the sky had turned dark, and she could see the the different coloured lights from cars, street lamps and buildings, to see the train arriving onto the platform. "I'm back," she muttered to herself. The sense of anxious dread crept over her again as she picked up her bag and departed from the train.
There was a rush of activity around her and she didn't know where she was going. Someone suddenly knocked into her, causing her to lose her balance and fall to the floor.
"Ow," she muttered, rubbing the arm that she had been knocked on.
"Here, let me help you up."
Kotoha suddenly saw a hand in front of her face. She took it, and the person helped her to stand.
"Thank you," Kotoha said, beginning to look up at the person who had helped her. Her eyes reached their face and her eyes widened. "Chiaki!"
"Welcome back," Chiaki smiled.
A/N: OK, so this hasn't actually gone how I'd planned, and I'm not massively pleased with it, oh well. This isn't going to be too long. No more than three chapters, I think.
The stuff at the train station is inspired by Crystal Blue Montana's story 'Shinken Reunion Party. Let's Go On!'. I quite like the idea of Chiaki going to meet Kotoha at the train station.
Note: Zuboshimeshi is the Ayakashi from episode 6.
Story Song: Fireflies
Artist: Owl City
Chapter Song: If This Isn't Love
Artist: Jennifer Hudson