___________

May 6th, 2149

Dear Shota Aizawa,

Thanks for the birthday wishes yesterday Sho! And from the past 15 years. Those letters were the only things i've been looking forward to my entire after life. Crazy right? It makes me feel so happy that you haven't forgotten about me. But please don't waste your life sulking over my death. And in case of anything, I didn't die because of you. I'm watching over you Sho! I can even prove it. Midoriya is the bone breaker that you said had zero potential on the first day of school, Bakugou is the kid that, for some reason, hates Midoriya, and Todoroki is the calm and collected kid with a scar on his left side, who's like the son of Endeavor or something. I'm proud you've made it so far Sho! I'm older than you again. Respect your elders and forget about me! Please live your life to the fullest. It might make me sad once you've finally forgotten me, but I would also be very happy to find you have moved on from your crying over me. I miss talking to you, I really did, and if I had realized I could write you a letter, even if i'm dead, then I would have written this a long time ago. I read every single one of your letters and I am watching your every move. This letter isn't your imagination. I pinky swear. Please stop harming yourself, drinking, and trying to commit. I know it's hard for you but so many people care. Your class, Zashi', Nemuri,  Toshinori, U.A staff, and even the Vigilantes back when you worked as a full time hero! So please. Live on. Now I totally didn't cry while writing this. I miss you! Please don't write back and forget about me. Maybe hold on to one or two memories but forget about the sad stuff. Pretend I moved away. Also, I suggest you not tell Nemuri and Hizashi because they'll think your crazy. But your not I promise. I missed you! I'm watching over your every move. Here's something I never got to tell you when I was alive. I'm gay. Crazy right!? Also.... I Like You. I like like you. I Love you. Mwah! Bye Sho!! Live your life to it's fullest! And when it's finally your time to go, I'll go back to heaven and welcome you with open arms! 

Someone who likes you,

Oboro Shirakumo / Loud Cloud :D

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Shirakumo finished writing the letter in tears. As much as he wanted to see Aizawa move on, he wanted someone who remembered him. But he couldn't be selfish and scolded himself for it. He smiled and got up. He ran to Aizawa's desk and placed the paper on it. Then he sat in a random seat and waited for Aizawa. 

As Aizawa walked into the classroom, he saw the paper on his clean desk. His eyes widened when he read "Sho". He immediately thought of Shirakumo. He was the only one who called him 'Sho' other than Hizashi, and Hizashi's birthday wasn't yesterday. Tears came to his eyes. By then his students had come in already. They saw their teacher at the verge of tears and were clearly confused. Aizawa realized the students were there but couldn't care less. He ran out of the door and to the roof. Once he arrived, he sat on the edge and continued reading the letter. Midoriya is the bone breaker that you said had zero potential on the first day of school, Bakugou is the kid that, for some reason, hates Midoriya, and Todoroki is the calm and colle.... Aizawa read. He smiled at his friend's description of his dear students. He continued reading, smiling at himself, knowing his best friend was watching him. Until he realized Shirakumo was telling Aizawa to forget about him. He didn't even finish the letter but forgetting about Oboro was not what he wanted to do. Aizawa cried to himself sitting on the roof, with his students peeking onto the roof from the staircase afraid of what their teacher might do. And then they saw a floating piece of paper and a pen float over to Aizawa. They were genuinely confused. I mean- who wouldn't be? Even if it was a world of superhumans. The pen tapped Aizawa and he almost fell off the roof. "What the hell!?" Aizawa yelled staring at the pen and paper. 'It's me. Shirakumo.' The pen wrote. Aizawa stared showing no sign of believing. "Stop pranking me" Aizawa said in his teacher voice. 'Stop that Sho! You know it's me! Remember? You wanted a cat tree in the building if we made a hero agency!' the pen wrote again. Aizawa stared again. "I can't handle this. Shirakumo! I need you ! Do you not understand!? That's why I tried commiting so many times!" Aizawa yelled, leaving his students staring, yet he didn't see them yet. Aizawa was sobbing at this point. He wanted to die so bad, and just be with his best friend. So he leaned back...

And let everything go. His friends, his cat, his students, Eri, Shinsou, his life.

A/N
SoOoOoOoOooo
Another part or no? Should I let him die? or force him to live? 
If you pick no other parts, then hes dead, but if you want another part, I can do it as when he died and the aftermath, oRrRrRr, I could make it if he lived! Your pick!