What is the first cup of milk tea in beginning of autumn?

"beginning of autumn's first cup of milk tea" refers to asking the other half for milk tea or red envelopes under the pretext of autumn as a sign of love.

"beginning of autumn's first cup of milk tea" originated from an internet craze, that is, "the first cup of milk tea in autumn", which is often regarded by netizens as a stem to express love or emotion, and is widely spread.

For example, "Baby, I'll treat you to the first cup of milk tea in autumn." "Baby, take you to the first cup of milk tea in autumn after work." And so on.