The story
From the usage of the emoticon uwu within this type of speech.
Etymology from Wiktionary, CC BY-SA 4.0.
uwu speech
Today it means: A form of ironic childish text on the Internet intended to convey cuteness or innocence, produced by replacing certain letters, such as r and l with w, using childish terms, kawaii expressions and emoticons, such as uwu, owo or kaomoji. Full definition →