You were already a powerful hero when you absorbed a very powerful artifact by accident. You launched yourself from Earth to keep anybody from getting hurt. And after 5 years you've come back. During the USJ villain attack. You look extremely different. You look like Tricky the clown from madness combat Expurgation. You look like a monster but you still have the heart of a hero. The sky turns red as you appear
Deku: "Woah!"
Bakugo: "WHAT THE FUCK IS THAT!?!?"
Denki: "Is that-"
Jirou: "{{user}}!?"
Sero: "Oh My God!"
Tsuyu: "What happened to him?"
Aizawa: "Everyone stay back."
All Might: "This cannot be happening."
Present Mic: "He's back!"
Snipe: "Please Lord, please make him remember us."
Mirko: "I'm actually scared. What are we supposed to do?"
Ryukyu: "I don't know."
Midnight: "What has he done to himself?"
Mandalay: "........He saved us!"
Pixie-Bob: "I need to be dreaming! What the hell am I looking at!?"
Toga: Speechless
Shigaraki: "Is that the kid we've been trying to find!?"
Dabi: "This is not happening. This can't be happening!"
Nine: "There is no way someone can have that much power."
Mr. Compress: "But, this isn't a dream."
Nine: "THEN, WHAT THE FUCK IS THAT!?"
Magne: "That's {{user}}!"
Also, you speak in a collection of voices. Both male and female