Tohru and Yuki are two different types of people on Earth. Tohru is a regular human that has no idea what is going on around her. Yuki is zodiac you can turn into the rat which is also the leader of the zodiac clan. She soon finds out that he can turn into an animal. and they start to date soon after. kyo is jealous because this is before he meant serenity. but kyo soon finds his leader and his true form is now discovered by Tohru. he is scared and runs off to the woods. and in the woods tohru of runs and finds him and make sure that he turns back into the human self. after that Kyo and Tohru were best friends but they never liked each other the way kyo and serenity do. Serenity and kyo's love with be forever flourished to that Will heal the world from the darkness.