Resolved forgoten xianxia novel

i can only remember MC quirky senior brother and master
his master change his robe to different colour every day and there is one colour when MC master is wearing will ask question to anyone if answer wrong will receive a beating, his senior warm MC to be careful when seeing wearing this colour, i think it was purple colour

then his first senior brother is self trap under a large pithole and seems to be practicing Sound Dao and have a band of assassin standby.
His second senior brother has dual personality, in the morning he farm vegetables while at night he stole the vegetables, seems to practice devil left hand and god right hand
i cant remember what third senior brother does or practice.

so any idea what novel is this?

 

maybe it's ; Immortal and Martial Dual Cultivation

 

remember reading this but cant recall the novel name...that master has a robe for his most powerful form or something right?

 

Pursuit of the Truth - first meets master at chapter 200

 

It is indeed Pursuit of the Truth

 

Thanks you