Ranposano

"There is only one such place in this world. A place that doesn't need you at all. Join the Detective Agency. We don't want your ability. What we want is that "kindness"."

- Ranpo to Akiko, when they first met.

Ranposano is the het ship between Ranpo Edogawa and Akiko Yosano from the Bungou Stray Dogs fandom.

Port Mafia Arc
In chapter 7, they seem to know each other well, with Ranpo correctly anticipating Yosano's quirks and hobbies like asking someone in the Agency to accompany her shopping. Ranpo says that that ability to notice dangerous is a good one, "For example, 10 seconds from now...", just as Ranpo trails off, Dr. Yosano walks into the room with a yawn, asking if Atsushi is hurt, then asks if Atsushi would help her with shopping since he's the only one here, Atsushi turns around, confused when he sees everyone is gone, recalling them talking about the ability to sense danger.

In chapter 21, on casual occasions and even during the Guild war, Ranpo invited Yosano to play a game with him, particularly hanafuda, while Yosano accepted and fiercely asked what their wagers shall be.

The Guild Arc
When Akiko and Ranpo were together in Poe's novel, trying to solve a mystery. Ranpo insisted that he has an ability and that abilities could not be used in the book world so he can't solve the case. After that, Yosano is determined to capture the killer and is seated in her room on her bed with an axe. When she was about to die, she placed her trust in the great detective for whom the Agency was established, said that the ADA was found so Ranpo could make good use of his talent which made him looks straight at her with his eyes wide open. At that time, Ranpo was using his left hand to hold Yosano's shoulder and using his right hand to hold her left hand. In the last moments, Yosano thanked Ranpo for recruiting her to the organization, told him she was still "very grateful" even to that day. As Yosano "died", Ranpo freezed, then gnashed his teeth, took her glasses, worn them himself and solved the case, came back out of the book unharmed with Yosano. Finds out it is the first time he solve the case without relying on his glasses and "ability", after Fukuzawa gave him the glasses and told him that he was an ability user.

After that, as Ranpo and Yosano are walking back, Yosano mentions that Ranpo doesn't actually have an ability. Ranpo declines and insists he has an ability, telling her not to call him normal. He was embrassed that he would look stupid if he turned out to be normal now, aftel all the time thinking he was gifted. Yosano lauging and she told her not to laughing, she said "Fine, fine" and he kept complain "No "Fine, fine" either"

Hunting Dogs Arc
In the past, Mori found the 14-year-old Yosano and got her out of the isolation facility. Ranpo and Yosano first met, when the Detective Agency had only one member - Ranpo himself. Fukuzawa and Mori were fighting with each other, because of how Ougai treated Akiko and Edogawa was spending his time with Yosano escaping with her. Akiko was in a really deep depression back then. She thought it was her fault, her ability's fault that someone important to her died. She didn't want to escape. She thought her ability was horrible and she didn't want to continue living with it. She told Ranpo that she can't go on living like this. Edogawa after that, with his usual cheerful attitude, told her it's stupid and she should just stop using that ability if she hates it so much. He tried to convince her that her ability isn't the most important thing about her. After she asked if there's a place where it's okay for her to go on living, Ranpo told Akiko that there's only one place that doesn't need her at all - Detective Agency. That they (him and Fukuzawa, at that time) don't want her ability. "What we want is that kindness". He was the first person who told her that it's her feelings that matter, not her ability.

Fanon
Ranposano is one of the most popular hetero ships in the Bungou Stray Dogs fandom. Its biggest rival ship is Ranpoe.

Fandom
FAN FICTION
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Trivia

 * Despite their friendly rapport, Ranpo is also wary and seemingly frightened of her treatments like the other Agency members.
 * Ranpo and Akiko are quite often seen standing or sitting next to each other in the Detective Agency.
 * When Yosano dead in fictional world, Ranpo half-hugs her and holds her hands with Yosano, looks straight at her with his eyes wide open. We could see on his face how much Yosano's "death" affected him, although it wasn't a real death.