Qin Ke Xuan, an elite assassin in a Xianxia-esque past world, was transmigrated into the body of a 15-year-old female student of our modern world. Upon transmigration, she meets her body’s childhood friend. Follow her adventure as Qin Xuan learns to adapt to her new environment. —- A certain frog: Now, may we have the following people to provide a description of Qin Ke Xuan below: Person A: someone highly skilled in martial arts, an incredibly OP lolita Person B: an expressionless person, with unbelievably high moe specs Person C: ridiculously good at everything, is a reliable comrade Person D: ruthless and cold-blooded, a demonic reincarnation Qin Ke Xuan: Me? I’m a killer. Persons ABCD: … Note: the author’s pen name “病蛙” means “sick frog”. Hence the author’s opening “a certain frog” is referring to herself from a third person’s view.