High-quality tsundere execution. The silent protagonist nature of canon actually helps here—his nonverbal cues (stomping, hair flipping, red ears) do the heavy lifting.
Anyway, if you're curious about why "Tsundere Femboys" are taking over corner of the internet—from Character.AI to indie games like My Tsundere Femboy — What Makes a Tsundere Femboy? tsundere femboy link
The phrase does not refer to a specific academic paper or a single documented phenomenon. Instead, it combines three distinct terms from internet subculture and media tropes. To understand the context this phrase likely refers to, High-quality tsundere execution
: The Gerudo Link entry provides a detailed history of how the "femboy" association became a viral phenomenon. tsundere femboy link