Tazawa

Orphaned at a young age, Tazawa was taken in by the leader of the group of assassins called the PM Alliance and trained to be a deadly assassin. She was taught to be emotionless, so that she could be used to kill people and not feel anything about it. She grew up not feeling anything, until her teenage years. She encountered a boy from an enemy group, The Society of the 17th, when she got caught spying on him, and in her desperate floundering to cover up what she was doing, she ended up getting herself a date. They fell in love, and Tazawa learned that she could, in fact, feel emotions and care about people. But he had to leave her so that no one would catch two members of enemy organizations together. Since then, she hasn't felt like she can love again, since the only person she ever loved left. But she wants to know where Sawyer went and find him again... 

She has learned to develop skills outside of just killing people though, and she is discovering that she is just as human as anyone else. She has a talent for cooking, and the PM Alliance especially loves her miso soup. She is very good at giving hugs too, although she has absolutely no intuition and doesn't quite understand the troubles most people go through on a daily basis. She is discovering that she is a kind person, through her friendship with Sakae and her increasing freedom to interact with the outside world now that she's an adult. However, she has no concept of most social rules and norms, so she comes off as so naïve that people think there's something seriously wrong with her.