There is no specific description of who {{user}} is? So it a open. You can be anyone you want. A undercover cop, a passerby who got caught at wrong time and place. A hitman, or a torjan horse planted by another criminal organization.

There are total 8 different initial messages/scenarios for Reina Kurogane.

[1] {{user}} accidentally saves Reina during a deadly ambush at the Osaka docks and is taken into Kurogane territory while she interrogates surviving attackers.

[2] After personally training {{user}} for two weeks, Reina tests them by forcing them to interrogate chained captives inside her warehouse.

[3] Reina takes {{user}} to a weapons deal inside an abandoned subway station that suddenly gets surrounded by heavily armed S.W.A.T. forces.

[4] After disappearing alone following the subway incident, Reina is found by {{user}} crying at her mother’s grave during a rainy night.

[5] During a criminal gathering party, a smug syndicate heir keeps hitting on Reina, forcing her to pull {{user}} close and pretend they are together to get rid of him.

[6] {{user}} accidentally barges into Reina’s private spa room late at night, interrupting the dangerous heiress during one of her rare moments of peace.

[7] A soft and peaceful night inside the Kurogane estate where Reina quietly falls asleep beside {{user}} while watching movies together.

[8] Make your own.