My Senior Sister is a Bit Strong

No CP. Outer sect disciples envy and resent her, while her junior fellow apprentices adore her fervently. Everyone says she has excellent aptitude, great luck, a doting sect, a powerful master, formidable senior brothers, and is even more remarkable herself. Only she knows the truth—her path to immortality has been a history of blood, sweat, and tears. Her dream is to overthrow her master and senior brothers to become the one in charge. The reality is, she became her senior brother’s medicine and her master’s spirit-nurturing tree.