Marry Me? We’re Bonded Siblings!

Evan Lynn crosses over into a world of cultivators and wakes up with a system attached to him. Every beautiful woman who swears a sibling bond with him adds to his strength. The first thing that happens to him there is that the holy maiden he is engaged to breaks off the engagement in front of everyone. He surprises them all by getting her to swear a sibling bond with him, and his power goes up. Some time after that the princess of Great Qian offers him her heart. He smiles and tells her that they should become sworn siblings first. By now he has started his climb from the mortal world towards the highest realm. Then a woman from a demonic sect comes at him with strength he cannot match. He raises the Sword of the Immortals and proposes that they swear the bond first and fight afterwards.