Lee Danbi, a 3-year veteran developer, had a simple life motto: don't be greedy for the world outside her well and be satisfied with reality. That's why she was able to give up an unrequited love that was beyond her means, but... <Today's Fortune - The start of the week, beware of a sudden tsunami!> One morning starting with an ominous fortune, the newly appointed team leader is... her first love from school? And that giant tsunami crashes straight into Danbi's humble life! "I don't get it. The Lee Danbi I know likes me." At that dizzying, unfamiliar feeling, her heart began to beat wildly again.