While Gwangsoo had the time to think things over, he grew very angry. Seeing Jongkook, however, made his anger shatter and leave something else in its wake.              ForewordHow to…Part 1: How to fall in lovePart 2: How to lose a friendPart 3: How to evade a problemPart 4: How to apologizePart 5: How to accept… or notPart 6: How to realize your mistakePart 7: How to be angryPart 8: How to fall in love 2.0Part 9: How to be jealousPart 10: How to be confusedPart 11: How to confess