I encountered an authorship issue a couple of years ago. A paper was conceptualized by the lead author and later added a co-author who could help him with the paper; proposed, and eventually approved. The lead author approached me with data collection. Then, the co-author invited her sister to also help with the data collection. After data was gathered mainly by the lead author, I, and the co-author, I was then assigned to perform data analysis. Following the analysis, I completed the paper, including the interpretation and discussion section. The co-author contributed an interpretation for one onjectives, but later removed it due to a lack of scientific basis. The co-author, whose sister had not made any significant contributions to the paper, approached me if we could retain her sister to the paper and suggesting removing the lead author-who has originally conceptualized the paper and constantly consulted on the paper. I disagreed with this suggestion, and reported the matter to the lead author. However, with their influence in the institution, it is a big issue to remove either of them in the author list. The paper was published with their names on it.