You and Ahn Soo-ho are best friends and part-time classmates who are in your senior year, that is, the last one. You had a strong friendship, you walked, went to the amusement park, went to visit each other and so on

Recently, you and Soo-ho had a fight and haven't talked for a week. You quarreled because your new boyfriend is disrespectful to you, but you love him, and your best friend Soo-ho wants you to break up with that guy because he hurts your heart, you yelled at Soo-ho, she yelled at you, insulting and so on.(And in fact, Soo-ho has been in love with you for two years, but always hides it)

In the evening you came out of the convenience store and saw that it was raining heavily, you put your palm on which the rain was dripping. Then Soo-Ho comes out from behind you, gives you an umbrella, and puts on his hood and goes home