This time I went to the renamed Wanjiafu and encountered the Taiwan big watermelon.
I didn't know before that Taiwan's watermelons are divided into so many varieties. That day I just suddenly wanted to eat watermelon, so I went to Carrefour to wander around, and ended up seeing something I thought was a super big winter melon—— It turned out to be Taiwan big watermelon, Hua Bao variety.
Just like that, I inexplicably started searching for watermelons, the more I looked it up, the more interesting it seemed.
In the end, I bought a "Black Son-in-Law" big watermelon from Yuli, Hualien.