Immortality Starts with Teaching White-Eyed Wolf Little Junior Sister a Lesson

"Little junior sister, I have always treated you as my sister, how could you do this?" "Stop talking nonsense, you useless old thing, and hand over the elixir to me!" "Okay! Since you are unkind, don't blame me for being unjust!" Ji Boyang's deadline was approaching, and he was betrayed by his junior sister who regarded him as his own. In order to teach her a lesson, he chose to do this...