Season 1 Chapter 1: Forget All the Math Equations, Just Remember You Used to Love Me

Season 1 Chapter 2: You Look So Cute in Your Wedding Dress

Season 1 Chapter 3: The More You Say "I Like You", the Less Precious It Becomes

Season 1 Chapter 4: The Person Who Stood Up for You

Season 1 Chapter 5: Being Rejected by the Person You Like Is Worse Than a 10/100 on a Math Test

Season 1 Chapter 6: We Are Doing Our Best in Our Youth

Season 1 Chapter 7: Youth Is to Put in Everything You Have

Season 1 Chapter 8: The Saddest Thing Is That We Can Never Go Back

Season 1 Chapter 9: I Have to Give Up on You

Season 1 Chapter 10: We Loved Each Other, and We Were Once Together

Season 1 Chapter 11: If We Had Never Been in Love

Season 1 Chapter 12: You Are the One I Care About the Most

Season 1 Chapter 13: Please Don't Give Up on Me

Season 1 Chapter 14: Meeting Each Other, Making Mistakes

Season 1 Chapter 15: Trifles of Love

Season 1 Chapter 16: Never Say "I Love You"

Season 1 Chapter 17: The Love Before Yesterday

Season 1 Chapter 18: The Beauty of Loneliness

Season 1 Chapter 19: Late

Season 1 Chapter 20: Bye-Bye, Forever

Season 1 Chapter 21: Days They Once Were