Hazuki Family's maid Ine hands a letter to Ryo, who is restless from his Father's death. The letter was sent from a person named "Yuanda Zhu" to his father which contained characters he cannot read.

Ryo finally finds a person who can read Yuanda Zhu's letter, which said "Find Master Chen for help". Ryo finds Master Chen and asks him about Lan Di, the man who murdered his Father.