Kageyama Tobio has done the worst thing possible for an assassin to do: care for someone else. (Second book of An Assassin's Mistake)

You fall in love with a boy, possibly more or maybe none at all. What's the outcome? WARNING: long chapters & possibly slow updates, CHAPTER WRITING CHANGES IN LATER CHAPTERS (May include cross overs from Kuroshitsuji, Free!, Kuroko no Basuke, etc etc etc) DISCLAIMER: I DO NOT OWN HAIKYUU; NOR DO I OWN THE OTHER ANIME THAT WAS MENTIONED HERE. I own only the plot :3

Reader inserts with Haikyuu characters! ⚠ going to make major changes or edits in my book soon ⚠ ❀ Requests: Closed ➷ #830 in FanFiction 02/22/17 ➷ #723 in FanFiction 05/15/17 ➷ #1 in 'yamaguchi' 05/25/18 ➷ #72 in 'haikyuu' 10/05/18 ➷ #7 in Oneshot Collection 05/02/2020 ➷ #6 in Oneshot Collection 08/08/2020

"And maybe this is proof that even if you think you'll be stuck in the dark forever, there will always be someone to show you the light after every tunnel." *A Haikyuu!! Fanfiction*

Haikyuu one shots!! Disclaimer: I do not own Haikyuu or any Haikyuu characters. P.S. This is an anime x reader book.

【Ｏｉｋａｗａ Ｔｏｏｒｕ Ｘ ＡＩ!Ｒｅａｄｅｒ】The man with the brunet hair, the man with the chocolate eyes. He was the one all the girls were after in his high school years, and now, twenty-eight years old, it appears like everything was for nothing. The relationship with his wife he valued so much, the little daughter not in reach -- Oikawa Tooru experienced the dark side of love, and the pain feelings could bring. He hated this world, but he needed someone; someone to understand him, who would be there for him. Our world has changed, the technology has had its biggest break-through: Artificial Intelligence, or how they would call it, Operating Systems. Oikawa never imagined that this would be his new chance for love, but that one computer changed his life completely -- like no other human would have been able to. Footer: ''Sometimes I think I've felt everything I'm gonna feel. And from here on out, I'm not gonna feel anything new. Just lesser versions of what I've felt." - Tooru Oikawa © 2015 PUMACCHI; all rights reserved. Copying this story in any sort will not be tolerated. Disclaimer: PUMACCHI does not own neither "Haikyuu!!" nor "HER". The plot of "HER (2013)" solely belongs to Spike Jonze. All characters, except for original characters, belong to Haruichi Furudate.

"I want the key to your heart."

A loud girl for a quiet boy. "You might be the interesting person I ever met.

We'd never really talked before. In fact, I'd always made it a point to avoid him. But Fate had another plan in store. Now here we are and my life is relying on the one person I've tried so hard to stay away from. But hey, at least he'll never know it's me, so I can be any way I want, right? I can be someone confident and strong and I won't feel flustered at all. At least, that's what I hope.