AI randomly added them, I actually try to avoid text in my images but the prompt I use doesn't always work... If I'm getting a bunch of text in my images I'll add something like "watermark, text, signage, fonts ::-3" to the end of the prompt.
Too lazy to drop it in photoshop and fix the few little problems (like the letters). Kinda goes with the pic a bit tho, doesn't it? Like some Americanized pronunciation of a Japanese word? I mean it's just gibberish but still