Chen Lin is a world-famous scientist in the new century. When he was young, he created the weapon Luo Shenyu to help the Li country pacify the four directions. However, Luo Shenyu is extremely powerful and its toxins can be found anywhere on the earth with water sources. Humanity was in danger. Chen Lin spent fifteen years developing a time door that allowed him to return to his youth. He went back to destroy the weapons he made and cut off his lifelong obsession. The moment he returned to fifteen years, he saw the person he had been looking for for fifteen years, looking at him with a smile...
Intention: an obsession, a responsibility, a piece of warmth, a fiery attachment