They both are similar in the way that both men are working in similar fields and have their first interactions with babies/kids and the gossiping neighbours and it's fun to see how they deal with it.
they both have baby with no yo mama... they also both have girlfriends so technichally step moms and they both have single dad life and the children are both girls well in the drama but not irl its so weirdddd i know heheheehehehe but its very similar because its SINGLE DAD WITH BABY AND DEAD MOM AND THEY LOVED THEIR WIFE BUT SHE DIED SADLY and they had to find a new wife. its very interesting. hi bye mama is such a good drama