She is so funny and cute. He is handsome and handsome. A childish woman and a genius man. A person has high emotional intelligence but low IQ. One has a high IQ but low emotional intelligence. From the initial beautiful acquaintance, to the ambiguous story of seventeen years old, to the pain of separation at the end of the world, whether they can finally depend on each other until they grow old, a heart-warming first love comedy unfolds...