Yamada Eiko was a descendant of her mother's maid, and the Jade Pendant Fragments have both kissed and verified her!
Yamada Eiko had recognized Ye Fan as her master, and according to her traditional thinking, all of her belongings, including herself, naturally belonged to Ye Fan.
Back when they were still in Flower Capital, Ye Fan had spanked her, and Yamada Eiko did not particularly reject some of his intimate actions.
In Guangcheng, he even entrusted Daya and Xiao Ya, the two Saintesses, to Yamada Eiko, letting her teach them and be their instructor!
That was totally an insider treatment!
Therefore, Yamada Eiko's conviction in her thoughts became even more firm!
Most importantly, whenever Yamada Eiko had intimate interactions with Ye Fan, she could gain that magical warm current, which rapidly enhanced her Martial Arts Qi.