"Don't panic! It's my first time, too"- Young-jun, a college student, feels burdened by the fruit store bachelor Seong-ho, who pretends to be close when he encounters in the neighborhood. One day, while he was uncomfortable with Sung-ho, who pretended to be close, a shower is fell. And the two fled together under the eaves of Young-jun's house to avoid the rain. When Young-jun was about to go home after saying hello, Young-jun found that underwear was reflected under Sung-ho's wet T-shirt that should not supposed to be there… What would be happened to them after that? A short Romance webtoon, Under the wet T-shirt.