noun, noun which may take the genitive case particle 'no'
his/her style; his/her way (of doing)
Refers to a person's characteristic manner, approach, or style. Often used with の to modify a noun, e.g., 彼流のやり方 (his way of doing things). Gender-neutral in Japanese; context determines whether it refers to 'his' or 'her'.
He solved the problem in his own way.
Her cooking has her own twist added to it.
Compound of 彼 (かれ, 'he' or 'she') and 流 (りゅう, 'style' or 'school'). The exact historical derivation is uncertain, but it follows a common pattern for expressing personal style, similar to 自己流 (one's own style).