When you sayy alternative, do you mean whhy should Nastu and Lucy be together right? Well from I point of view/opinion Nastu and Lucy are always together no matter what, they are always thinking of one another. Nastu feels the need and want to always protect Lucy, to be by her side. And she wishes and wants to become stronger to protect Nastu yet she does not realise that her being a round and just being by Nastu's side that's enough for him to smile and tease her. They are both in love with each other but they are to dense realise that. They are made for each other in this life and the next life, forever to be together and love one another unconditionally... thats my opinion about them.
Thank you Draconaise Vermiliomn