They met in April and fell in love for four years. The heroine had to go abroad for treatment due to illness and was forced to separate from the hero. Three years later, he reunited with the heroine on a street. The hero decided to spend the last time with the heroine. However, after the heroine died, the hero could not restrain his longing and created a time-traveling machine just to see the heroine for the last time.
Intention: love