Mortal servant Lin Yan travels through the immortality cultivation world, plagued by stubborn illnesses, and unexpectedly awakens the Myriad Entries System. Gu Qingyao takes the initiative to marry him, seemingly a heavenly blessing, but he uses the system to see through the fatal plot hidden beneath her gentle mask, resolutely refusing the marriage and copying the golden entry "Immunity to All Diseases" to eradicate his chronic ailment. However, he didn't expect that a malicious scheme targeting him had already quietly unfolded in the dark.