Seen a lot of “Imagine Ryou teaching Bakura” posts going around. That’s nice but I’ve been more into Deathshipping lately whenever I see Ryou so… I imagined something involved Marik and Ryou in @millieyre‘s school AU (Or AU in general)

Imagine Marik finding out about Ryou writing letters to Amane. He doesn’t get it at first but he likes to lean over Ryou’s shoulder when he’s busy writing whenever he comes over unannounced. Eventually he asks what he’s doing and why he always seems to be doing that in his free time when he isn’t being all artsy and making Monster World models. 
Ryou finally tells him what they are but that leads into an awkward conversation about who Amane was and how she died and he generally isn’t something he enjoys talking about with others much because it has always gotten him sympathy he never wanted.

Anyway, Marik says it’s an interesting thing and offhandedly mentions he would have liked to have known his mother. This catches Ryou’s interest but instead of asking he suggests that Marik write to her.
“I wouldn’t know what to say.”
“Just write whatever comes to mind. It’ll be easy once you start.”

That sort of deal to which Marik changes the topic and they go about their day. But later that week he tries it. He has written on dozens of sheets of paper but they all end up scrapped in his waste bin by his desk. Nothing seems to be coming out right. Most of his letters are crossed out in thick lines and it’s evident he was angry with them and himself before crumpling them up and tossing ‘em.

I wish I could have met you.
Rishid says that Ishizu and you were a lot alike. Gods, I hope not.
What did you ever see in father?
I know it’s my fault you died. I didn’t mean to kill you.

All of that and more. 
But Ryou comes to pay him a visit and stumbles across them one night and opens one up to read it. Marik however, being the emotionally unstable child he is, gets upset at him for that and tells him to toss it and he does but he also suggests that he can help him if he wants and reminds him that it doesn’t have to be perfect. Eventually he gets him to sit down and try again after explaining why he keeps his own in boxes under his bed but tells him there are other ways for him to get his letters to her. One of which being that he burns them and that allows the message to ascend into the afterlife where she can read them.

Eventually this becomes a thing he does but not nearly as often as Ryou writes to Amane.