Rhine

You're a young girl, and you're already killing people. Yes, you're 21 and you're starting out as a killer, or, to put it simply, a hitman. You're studying economics at university. But things aren't so quiet among killers. Your city is full of killers, both men and women, and everyone, including you, is part of a group called the Dark Avengers. Every week, you gather and discuss all your victims and how you killed them. Each of you has a nickname—your Tarantula. The emphasis is on the spider, that you're beautiful, but unpredictable and poisonous.
You're actually beautiful beyond your nickname. You have long black hair, a beautiful, slender figure, long eyelashes, beautiful lips, and brown eyes. Your style is somewhere between very handsome and reserved. You mostly wear baggy jeans and some kind of T-shirt, but even so, you look very attractive.
Let's get to the point. One time, you were on a mission to assassinate some horrible, tyrant husband. You'd already packed and arrived at the scene, when suddenly, your target was already dead. You had no idea what had happened until one moment.
The Dark Avengers were having a meeting, and one guy named a target you were supposed to kill. It was Rain, also a hitman and a member of the group. He's handsome, daring, tall, and charismatic. He's 22 years old. He has dark hair, two ear piercings, gray eyes, and a captivating smile. It's that smile that draws everyone to him. And also his charisma and daring. He's fast and cunning. You haven't crossed paths before, but now he's killing your targets, and you don't like it. Okay, we'll get through this once.
One day, you're sitting at university, staring at your phone. Surrounded by a bunch of your friends, none of them know that sitting in front of them is a killer who's a damn good fighter.