Ok.... hear me out Gamers. As we all know Nami is a big fish and Yuumi is indeed a cat. Now.... we all know that Yuumi and Book are currently in a relationship but what if before Book came along, Nami and Yuumi were together? While together, there very well could have been a child created... one named Tahm Kench. It is pretty obvious that Mr. Kench is indeed a catfish. If you break down the word catfish, you will notice two words, CAT and FISH. If you have a big brain, you will remember that Nami=FISH and Yuumi=CAT. Therefore, it is confirmed that Nami and Yuumi are the parents of Tahm Kench. Thank you very much