Soul-Piercing Female Assassins, They Have Fun in the World of Assassins

[Non-system] [Not a brainless novel] [Plot + Funny + Reasoning + Multiple Characters] [Plot: Protagonist Upgrade + Exploring the Truth of Time Travel] Dashan and Lao Gou, as two middle-aged men, accidentally passed through the body of a low-level female assassin. The two borrowed the female assassin to complete various assassin tasks, fight monsters and upgrade along the way, enhance friendship, find prey, and explore the truth. They enjoy a life of gratification and revenge, and each find the meaning of life. This world is composed of multiple worlds, the world of assassins, the world of warriors, the world of Qi refining... The Assassin World has evolved from the Dandelion Assassin, to the Lilac Assassin, to the Plum Blossom Assassin, and to the Orchid Assassin. The protagonist also starts as a junior assassin. He listens to various upgrade plots and appears in multiple tasks, and will return based on the plot and character popularity. Because of the character level in the early stage, she mostly follows others to complete tasks to level up.