Both leads are goal oriented, ready to do whatever it takes and they use everything and everyone as a stepping stone in order to achieve success in their career. Until they get into an accident that will change them forever. Suffering from amnesia, they try to put together the puzzle of their lost memories and in the process they rediscover their lost true self.
Memory doesn't have the amnesia plot but the main character is suffering from amnesia. He is also a high shot lawyer like the new leaf hero. But the main similarity is how they are trying to make amends to their past decisions and their character growth. Anyway, my rating of memory is a little better than that of "A new leaf'.