[6] Danbi is a senior high school student taking the College Scholastic Ability Test (CSAT).

As she has the ability to travel through spacetime, she takes a leap of faith and jumps into the puddle of water and into the Joseon era.

Danbi finds that in the Joseon Dynasty, her high school level of math and science makes her the greatest scientist in the entire Kingdom.

Presented to the Queen Dowager, who is a doppelganger of her own mother, Danbi becomes very home sick and therefore decides to return to her era.

Lee accepts her decision, and they leave, heading for the beach, where they share a passionate good bye with each other before Danbi disappears into the portal in the water.