After Rebirth, Will I Become Their System?

After a fatal business drink, I woke up back in the summer of my 18th year, expecting to awaken a cheat system and coast my way to an easy life. Instead, the system made me an agent—and left me to find my own hosts. To replicate their task rewards, I, someone who desperately avoids dealing with women, was forced into a youth romance drama with a high school campus belle obsessed with making money. Then, my childhood friend suddenly showed up claiming she was desperate to improve, clinging to me every day for tutoring. And let's not forget the rock-loving senior from the university art troupe; I'm a tone-deaf music idiot who just wants to lie flat, so stop dragging me into a band, hey! What kind of system agent is this? I was promised an effortless free ride, but I'm working harder than the hosts! Just as I reached my breaking point, I received an encrypted email: "I heard that dating you can change my luck?"