- "None of you would know anything if not for me!"
- ―Su to Ryo
Wenxu Su (Hànzì: 蘇文旭, Pinyin: Sū Wénxù, On'yomi: So Bunkoku) is one of the eldest members of Bailu Village, alongside Xiuyu Yeh and Jiusi Sun. He live in the Sunset Hill area. He is the grandfather of Yaqin Su.
Su provides Ryo some pieces of information about the past of the village and its mysteries. He also tells him some rather hyperbolic stories about his youth.
- Given the same surname, he's probably a relative of the local Chen-style Taijiquan martial artist, Ziyong Su.