TRUSTFELL NOTES
Isaac's room is ridiculously neat - you'll notice that there's nothing out of place and nothing looks cluttered. You can find most of his belongings in his trunk, though all the items he wanted to keep are in the closet. There are some notes laid out on his desk as well, addressed to the other people here (and one other person).
Those might not be the first things you see though, since there are the designs painted on two of the walls. You'll find yourself staring at a map of Amestris with certain cities labeled. Ishval is circled in red. Some of them have paper duct-taped nearby with Isaac's handwriting, written in code of course.
The second wall has a map of Central City with a familiar alchemical array painted through it in red. Three specific points are marked on this map and once again there's duct tape and paper containing notes on whatever it is this one's supposed to represent.
Inside the desk you can find an alarming amount of notes - they're written in Amestrian and coded in a cipher that involves numbers, letters, and mathematical equations. If you're able to figure out the cipher you're certainly welcome to read them! Otherwise these are coded to look like research notes on his alchemy.
Those might not be the first things you see though, since there are the designs painted on two of the walls. You'll find yourself staring at a map of Amestris with certain cities labeled. Ishval is circled in red. Some of them have paper duct-taped nearby with Isaac's handwriting, written in code of course.
The second wall has a map of Central City with a familiar alchemical array painted through it in red. Three specific points are marked on this map and once again there's duct tape and paper containing notes on whatever it is this one's supposed to represent.
Inside the desk you can find an alarming amount of notes - they're written in Amestrian and coded in a cipher that involves numbers, letters, and mathematical equations. If you're able to figure out the cipher you're certainly welcome to read them! Otherwise these are coded to look like research notes on his alchemy.

no subject
I can't fucking stand this guy. Terumi's intentionally trying to rile me up most of the time, I think. But sometimes he tries to talk about alchemy and stuff and he seems... okay? But he's definitely lying to me about whatever the hell happened to that one guy back in his world. This guy's really hard to deal with.
WEEK 2
Still can't stand this guy. Everything that comes out of this guy's mouth is ridiculous and I can't believe a word he says. I don't know why he keeps pestering me. What did I do to deserve this?
WEEK 3
...Apparently he really doesn't like lies, so... I don't want to think too much about everything he's told me. Apparently he's shared bodies with people before. That's really damn weird. He also thinks that you can use souls in alchemy without rebounds killing you? I don't know.
He also taught me a bit about coconuts in the worst possible way. By kicking it into a wall so it broke all over us. I can't even say I'm surprised. Nothing this guy says or does surprises me anymore. Not even the stuff about intentionally going after the family of that guy from the weird poster. Terumi's fucking weird.
We also fought and that was... actually kind of exciting? I still don't like him though.
WEEK 4
I guess I should stop lying to myself. I've got a soft spot for Terumi. I don't know why. He's an asshole, but he... kind of tries? In his own way? It's sort of nice. He was even encouraging, that was kind of odd.
WEEK 5
I kind of accidentally gave him the wrong idea about Kimblee. But it doesn't matter anyway! Sparring with him is still fun, but I got my ass kicked this time. I need to focus more on sparring with him; I can't let my guard down for a moment.
WEEK 6
I don't think he'd actually kill anyone here. He stabbed Yuri while they were sparring, sure, but Terumi's not stupid enough to kill anyone and try to get away with it.
But I'm still kind of worried that something'll happen. It's really weird to think about.
WEEK 7
I wish things didn't have to end like this. I really wanted to fight him at full strength.