Coming Out Note summary:

After failing the first blind date in his life, Oh Do-Kyung calls the friend who arranged the date. He's in the bathroom. During their conversation, his friend says something which angers Do-Kyung, which leads him to accidentally shouting his secret. His secret is that he is gay. To his shock, he realizes that there are other people in the bathroom: friends from his college department and even a senior student that he is on good terms with. Worried about whether or not they heard his secret, Do-Kyung's life completely changes.