Lin Tianyang, an orphan raised by his teacher Li Changjiang, excelled academically, scoring top marks in the college entrance exams. Despite battling ALS, Li Changjiang prioritized Lin Tianyang's education over his own daughter's, ensuring he could attend university. Lin Tianyang went on to study medicine at Jingbei University, driven to succeed and repay his teacher. Six years later, he's developed a revolutionary ALS treatment and is ready to return home to show his gratitude. But what he doesn’t know is that his mentor's condition has taken a turn for the worse.