Kobayashi Emi is Karasuno's third manager, however, due to her parents job, she had to move all the way from Miyagi to Tokyo. Emi then embarks on a journey of being a basebal managers and meets Miyuki Kazuya, the famous cocky catcher, and where she makes new friendships. The story begins on Haikyuu's second season up to Karasuno's Summer Camp and during the Baseball Summer Tournament. Also, the timeline in Haikyuu and Ace of the Diamond are slightly different to each other, especially the dates in the calendar, so I might alterate Haikyuu's calendar and make it fit with Ace of the Diamond calendar. Sorry, I suck at descriptions. Hopefully you give this story a chance. This story was honestly inspired by a fanfic called "Another Manager" by LoveAi2 on Wattpad, if you have any interest, go check it out! HaikyuuxAceofDiamond crossover. I do not own any of the plot, characters, nor translations. "Haikyuu!!" plot and characters belong to Haruichi Furudate-san. "Ace of Diamond" plot and characters belong to Yuji Terajima-san. I only own my OC character. The plot is much like the anime, meaning that I am not changing much the original plot. P.S.: It might include spoilers of the manga since I am not sure if Act II Second season might come out. Also, regarding to Haikyuu's spoiler, I might only write it down after the movie comes out (mostly Nekoma vs. Karasuno match, like and special chapter or something). You might also find terrible grammar mistakes.

This is a Haikyuu x Diamond no Ace crossover, but focusing on the Diamond no Ace. A girl who has Tōru as her older brother, but just by the title. A girl who dreamt of going to Inashiro so she could go to Koshien. A girl who wanted to catch for a certain boy named Narumiya Mei. And a girl who had to find out that everything could not always go to her liking. Highest rank #1

Yuji Sawamura is a young man who is lively, caustic, and serious. Despite having a difficult upbringing, the man is focused on more important pursuits, like baseball. After receiving an invitation for the Sawamura twins both to play baseball in Tokyo at Seidou, Yuji made the decision to accompany his brother. How Yuji will develop as a person and batter, and whether he will be given the nickname "The Demon hitter"? I don't own any character besides Yuj. Slow updates

Precision pitch control, an aggressive playing style, and the mental fortitude to match. Stamina for days, adaptable and reliable batting skills, and natural leadership abilities. "Too bad all of that talent is wasted on a girl. You'll never make it pro." And the stubbornness to prove them wrong. Add in a dash of sailor's mouth and enough spite to fuel an army and you've got yourself an explosive mixture. Narumiya Alexia has just moved back to Tokyo from America and after joining a local powerhouse school, she's looking to prove herself on the field. And to settle an old grudge.

"Have you heard? Seidou's got a witch coaching them now!" "Hah?! A witch?!" "That's wrong. That woman can't even be compared to a witch... she's the devil." (Slight!One Outs and Eyeshield 21 crossover) Reminder: This is a fanfiction I only own my OC and not any characters or content from One Outs, Eyeshield 21, or Diamond no Ace

Miyuki Kazuya didn't have time for a high school romance. Neither did intelligent, popular, and hard-working student Yukimura Ai. Their arrangement was supposed to be easy; A way to kill time. There were not supposed to be any feelings involved. They were both equally broken. Emotionally defective. They knew there were risks, but that didn't stop them from playing with fire.

What happens if Eijun Sawamura had a twin sister? Meet fifteen year old Hikaru Sawamura, ace batter and right fielder for Akagi Junior High School. There is just one small problem....Hikaru is always mistaken for a boy, but she is a girl. However, when Rei Takashima comes and offers her brother a scholarship and by some weird turn of events MR. Hikaru Sawamura gets a scholarship...what will happen if Hikaru goes to Seidou disguised as a boy? Will her batting or right fielding stay top notch or will she fall? Will Hikaru be found out? Amazing cover done by iAMaSTARKIDranger (Thanks)

The story of Furuya Satoru and his twin sister, Satomi. Furuya has always been a little introverted, but his sister is his opposite. She is outgoing and sarcastic, and a devil of a baseball manager (at least, according to Furuya's Junior high team). How will these characters adapt to Seido? Who should be more afraid: Seido or the baseball club? (Ace of Diamond FanFiction, I do not own any of the characters except Satomi and any original characters).

Sawamura Eirin is Sawamura Eijun's younger twin sister. She once was an amazing baseball player, extremely outgoing but after an incident left her arm shattered, she left the baseball field in fear. Eijun gets scouted for Seidou, and there is a chance for her arm to be fully healed. Eirin goes with her brother to Tokyo. With the help of new friends, is it possible she will go back on the field of her favorite sport? (This is also posted by me on a website called Quotev. I only own Sawamura Eirin and the Nagano Sharks.)

on hiatus ••• Sawamura Akira, The younger twin of Sawamura Eijun. The wild card, The one nobody could control. Can somebody tame him? ••• Miyuki Kazuya x Male OC DIAMOND NO ACE DOES NOT BELONG TO ME, ONLY SAWAMURA AKIRA (+some other characters who I can't reveal) AND SOME OF THE CHANGES AND TWISTS I MADE IN THE STORY. Cover by TheGreatSphinx