Scarlet Agent's Usagi

Yuki Kudo is Shinichi Kudo's adopted older sister by 12 years, at the age of 19 almost 20, she leaves the comforts of Japan and heads to take a bite out America while in the search for her first crush, Shuichi Akai, she met a month prior. Finding him, she enlists his help in order to learn how to speak and read English. While helping him enlist into the FBI, she learns how to live in America. On her twenty-first birthday, the two reveal their love for one another and the two continue their relationship from there. A Few years later, she returns home per Shuichi's request with an infant in her arms. Then five years following, the two begin the war against the secret crime organization called, the Black Organization.