Sister-In-Law, Please Help Me Become an Immortal

[System + multiple heroines + cultivating immortals + refreshing writing + foreseeing the future] At the beginning, you are bound to a mysterious system and receive a Tiandao-level skill. The two of you can practice together to improve the quality of your spiritual roots. My wife has been promoted and asked me to take good care of my sister. For such an important task, I will definitely guard it day and night... I just didn't expect that she was my first love three hundred years ago! The rich second generation uses power to suppress others, and my wife is practicing in seclusion. I can only hide in a hotel with my sister for a month. The room was broken into, and the hotel owner, Mrs. Niu, was considerate and changed her to a fun suite with fun clothes and scene experiences... "Come to my office at noon!" With these words, Mrs. Niu left on high heels. I really don't want to go there, but I can't live up to my beautiful heart. I am a responsible man! The company treated me as a weakling, and my colleagues laughed at me for being a low-level person in the Qi-Refining stage. No one expected that the new female CEO of the Refining stage would support me. [I really don't want to be a scumbag, but I'm so deeply in love that I have no choice but to do so!