If You Don't Practice Immortality Well, Why Would You Have a Date?

Have you ever seen this kind of rogue system? I don't need her, but she keeps talking in my ears every day about how 'if you gather three thousand girlfriends, you can become an immortal instantly'. If I continue not to use her, she will urge me to win favor with girls, saying that it can quickly increase my magic power. Before I even used her, she entered my dreams and transformed into various images to practice my 'dating' skills. …… What? You ask me why I use 'she' to refer to a system? Because around chapter 30, when she saw that I didn't chase any girls, she turned into a woman and came to live in my house. She also helped me flirt with all the beautiful girls I met! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.