Disclaimer for this story: I do not own Hikaru No Go or Bleach. I am making no profit from this. This is purely done for the fun of it on my part and nothing more.
What if Sai (after he passed on) was able to give a message to Uryu (during his stay in the Soul Society) to give to Hikaru when he returned to the land of the living.
Location and Time: 4th company healing and recovery station two, the day after Aizen and company have left the Soul Society to Hueco Mundo, Uryu is working on the clothing he will give to his friends when a knock is heard.
"Yes." Uryu as he puts down Chads shirt and then turns to the door. In the door is a man with long hair wearing the uniform of a Soul Reaper cadet holding a fan.
"Uryu Ishida, may I make a request of you?" As the man nervously moves from one foot to the other in the doorway.
Surprised, but interested as to what the man has to say Uryu says, "Alright, what can I do for you…"
"Fujiwara-no-Sai, but Sai will work." Sai coming in to the room and sitting down at the desk by the bed that Uryu is using.
"So, what can I do for you Sai?" Uryu wondering to the spirits intent.
"I was hoping you could deliver a message for me to my student." Sai looking to Uryu.
"Couldn't a regular Soul Reaper do the same?" Uryu thinking that Sai's student must be dead given the age and power he was giving off.
"No, Hikaru is alive. I had to get Captain Unohanas consent just to come here and ask you this." Sai as he practices changing his fan to sword and then back again as he waits for Uryus response.
"I will, but only if you tell me the whole story." As Uryu leans back into the bed to get comfortable.
Sai fills him in on it all, and Uryu agrees to take back his message when he is to leave back to the land of the living.
A two days later, "Thank you Uryu." as Sai hands over a medium sized manila styled envelope with a few pages in it. "Oh, and if Hikaru doesn't believe you show him this." Sai as he hands over a record of their last game with his next move circled in red.
"Hey Uryu, who was that?" As Ichigo comes up to him after Sai leaves.
"Sai." As he turns to the gate.
Several days later at the Go institute during a certain lunch break two top rookie pros are just exiting an elevator.
"Idiot!" Pro One to the other.
"I said I would tell you about it sometime, sometime isn't now." Pro Two with the two toned hair.
"Hikaru Shindo?" Uryu to the two toned teen.
"Yes, can I help you?" Hikaru wondering who the older teen was.
"Uryu Ishida, and can we talk in privet?" as he looks over to Toya.
Hikaru curious as to what Uryu wanted, but mindful of Akiras questioning glance says, "Whatever you have to say, Akira can hear it too." As they start to go to a side room.
"Its about Sai, and here." As Uryu puts the last game record into Hikarus hands.
Two things happen at this Akira looks to Uryu for an explanation, and Hikaru goes to his knees in tears as he looks to the record.
"How?" Hikaru to Uryu not caring that Akira was with them.
"It's a long story, and this is also for you from him." Uryu hands over the envelope to Hikaru.
Hikaru opens it and several pages fall to the floor. Some were letters, others were game records, and a few were even drawings of people and things from the Soul Society. The one though that got his attention was a sketch that was done of Sai wearing only the outfit of an academy student.
"Sai. How?" Hikaru as he stands and faces Uryu knowing that none of this could be faked with this much accuracy.
"Like I said, long story and much of it I will have to explain." Uryu knowing that the other two had no knowledge of the Soul Society and of its workings.
"We can take the train, and then walk to my home, it's not too far." Hikaru heading to the door of the institute.
"Shindo, the game." Akira looking to the clock and starts to move Hikaru to the elevator.
"I resign." Hikaru shaking Akiras attempt at keeping him there.
"You were in a game?" Uryu realizing his mistake says, "Finish, I think he would have of wanted that."
Time and Location: After the; game (Hikaru lost), train ride, walk, and explanations form both Hikaru to Toya, and then Uryu to them both, Uryu is helping Hikaru with the letters while Akira just looks at the last game record as he takes it all in.
"Hikaru, can I see it?" Akira as he looks to both Hikaru and Uryu.
"See what?" Hikaru to the distracted Akira.
"The Go board that Sai was in." Akira wanting to see what had started it all so long ago.
Hikaru looks out and sees how late it is and then says, "Tomorrow, after school."
"Okay." As he puts down the record as he too only now just noticed how late it was and then asks, "Can I use the phone to call home?"
"Yeah, it's down the stairs and to the left. Uryu do you need to use it too?"
"No, though I should be going as well, and here is my number if anything else comes up on your end, or if you need help with what is in the letters give me a call." Uryu as he hands over his number.
"I will, and I can't thank you enough. If I can help you out with anything, here's mine." As Hikaru gives him his number as he walks him to the door, only to also see Toya coming up to get his things so he could leave as well.
"I'll meet you at your school tomorrow at four." Toya as he goes down with them.
"Tomorrow then." Hikaru smiling and wondering what Sai was up to as the door closes.
I had a bit of an odd thought, brought on by the sword that Sai had when training Hikaru. I figured the fan transformed into that, and to me that looked a heck of a lot like Ikkakus sword to spear/sansetsukon.
