Tewat's Me Undercover in Solstice Winter

Introduction: (Genshin Impact) Undercover? Lie on the bottom of a hammer! I will never be an undercover agent again in this life! PS: This book is dark and involves many conspiracy theories. The protagonist has a bad personality and a bad temper. He likes to cause trouble and causes chaos wherever he goes. Moreover, regardless of whether he is a good guy or a bad guy, he kills and beats when he needs to. There is no reference to the original characters. A hint of sympathy.