Struggling to find success, a former wrestling prodigy finds himself ready to quit until he reencounters an old friend who reignites his passion.

Seo Yi-Gang is the best ranger at Jiri Mountain National Park. She knows virtually everything about the area, including where to climb the mountain. Kang Hyun-Jo is a rookie ranger at Jiri Mountain National Park. He graduated from the military academy and was once an army captain. He has a secret that he can't tell anyone about. These two people become partners and they work to save people around Jiri Mountain National Park.

Explore the relationship of two people as they go from being “just acquaintances” to “a genuine couple” — Yoon Jin Ah, a coffee shop supervisor in her 30s, and Seo Joon Hee, a designer at a video game company who has just returned from working abroad.

Kyung-min lives alone in a one-room apartment. One day, she found a trace of a stranger breaking into her room and soon a mysterious murder case begins to unravel