For Ojitchi (the old guy), you have to take really good care of your tama when it is an adult. When the matchmaker comes, just keep answering no to her. At age maybe 11 or 16? (I forget) it'll turn into Ojitchi. WARNING: If it becomes and Ojitchi, you will have to start your generations over because the matchmaker will come again! You can only continue you generation if someone else has Otokitchi to mate with. If so, then you will get Oyajitchi!