Me imagine Xīn Yán Kang has an alternative/secondary skin

As she has 'side hustle' as Seido's Courtesan/Oiran in Red Town (my Seido version is Red Town is Red Light District in Seido), Xīn Yán Kang considered as one of the top & clients' top yet different to seduce.

To win her heart is either beat Xīn Yán in chess/shogi or just become an elderly guy (she has gerontophilia)