Kurakucho Central Park looks calm in the afternoon. After dark it becomes an exam. Yakuza Rogue EX: Officer Ayukawa Hikaru is an adult RPG simulation developed and published by WAKUWAKU. You play Hikaru Ayukawa, a rookie officer who just finished the police academy. Her first assignment is a 30 day evaluation period patrolling the park, and every shift tests whether the academy prepared her for what the streets actually ask.