Cases are analyzed through investigation with one or more of the male leads, searching the crime scene for evidence, and interrogating NPCs who are involved.

The player takes on the role of a female defense lawyer (whose name can be customized) who works for the Themis Legal Office.

She defends her clients in various criminal cases alongside the four male leads and romance interests: Luke Pearce, Artem Wing, Vyn Richter, and Marius Von Hagen.

The player character, alongside the four male leads, also joins a secret investigation team dedicated to solving the mystery behind the illegal distribution of a dangerous drug known as NXX.

[7] Main Character (Code Name: Rosa): The playable silent protagonist, a 24-year-old female attorney at Themis Legal Office.

Luke Pearce (Chinese: 夏彦; Japanese: 水無瀬夏彦; Korean: 강혁; Code Name: Raven): "There are cases I can't crack... such as you."

Luke left eight years before the start of the main story, after his early acceptance to the prestigious National Central University.

Artem Wing (Chinese: 左然; Japanese: 左京静真; Korean: 백은후; Code Name: Libra): "You are one comprehensive lexicon that I'd dedicate my life to study."

Over the course of his career, Artem is the youngest senior attorney and a legend among the industry, as well as being the MC's partner and mentor in the Law Firm.

Vyn Richter (Chinese: 莫弈; Japanese: 森月黎; Korean: 윤노아; Code Name: Adjudicator): "Do not be afraid.

Marius Von Hagen (Chinese: 陆景和; Japanese: 和泉景; Korean: 유신우; Code Name: King): "Calling you "Miss" doesn't mean there's only cold, hard business between us."

[9] There was a second pre-release campaign counting the number of Twitter followers on the official account, which also gave in-game rewards.