Houritsu wa Uso to Okane no Mikata desu. Kyoto Gosho Minami, Azuma Houritsu Jimusho no Houtei Nisshi

Tsugumi, the granddaughter of Masayoshi Azuma, a highly skilled but greedy lawyer, is a high school girl with a special ability: when people lie, she sees their faces become distorted. The cases that come to Masayoshi are all difficult. "A stepmother forced to renounce her inheritance," "An investment consultant accused of being a con artist," "A high school girl who wants to change her ridiculous name," "The son of a criminal pressured by his neighbors to move"—she and her childhood friend Soji take on the truth hidden behind the "lies" of their clients and plaintiffs!

(Source: Shueisha, translated)