1. FOSTER HOMES - a headcanon memory so no link

A memory of Akechi as a child, in one of his foster homes! His foster parents are extremely neglectful; they leave him to dress and feed himself while they're off watching television or doing other adult things. This memory is a day in the life beginning with Akechi watching up for school; making his own breakfast; ducking his head to avoid a bit of verbal abuse from his foster father, who yells at him for getting in the way; walking to the bus stop; attending school, and getting scolded by a teacher for not having his homework done; returning home; having to make his own dinner with meager ingredients because his foster parents left to go out to eat and didn't restock the kitchen before hand; and then putting himself to bed while his foster parents are still out. There's an intense feeling of loneliness and resentment in this memory, especially directed at adults!

2. Akechi kills Joker - https://www.youtube.com/watch?v=pRfFHKxFeb0

BASICALLY, AKECHI MURDERING JOKER. . . or thinking he did! It's actually a cognitive fake of Joker, but he doesn't realize it at the time. This is a memory of him cornering Joker in an interrogation room, stealing the guard's gun, shooting the guard, then shooting Joker in the head, and placing the gun in his hand to make it seem like suicide. He is remarkably calm throughout the entire ordeal! And there's a sense of victory that accompanies this murder, too. There's something buried under all of that, a slight twinge of regret, but hey he doesn't like thinking about regrets.

3. Receiving a hit from Shido - HEADCANON MEMORY so no link

Basically a short and sweet memory of Shido calling Akechi and being like, "hey I need you to give this high-ranking government official a mental shutdown please and thank you." There are feelings of like, "this man is scum and I hate him" while Akechi is talking to Shido, but he stays calm and accepts the hit without much issue! Wow experienced political assassin get.

4. Fighting Shadow Sae - https://www.youtube.com/watch?v=PoZtza8-kLo

Just this boss fight, basically. Pretend Akechi is in the video. He's being cool and fighting a Shadow and summoning his Persona Robin Hood (https://vignette.wikia.nocookie.net/megamitensei/images/6/6a/Robin_Hood.png/revision/latest?cb=20170610201404) and generally being a badass.