Ranma Satome: the main character in the story.
This story happens to make everybody either hate him or love him.
He came to Japan to Tendo house to meet his fiancee,
and to live there. The first time they met had some trouble
and they fought. In that episode, it ended as Akane(the fiancee of ranma)
thinks Ranma as a pervert and Ranma think of her as a uncute
girl(ranma turns to a girl when splashed by a cold water
This happens because at China, he fell into a pool that turns
to a girl when splashed by the water).
The story of how important chracters came: starting in
school, Kuno challenges Ranma because of the
engagement to Akane(he loves her). But later, it ends that he love's
Ranma's girls side without knowing Ranma is a girl and a boy.
And Kuno tries to defeat Ranma because he is better than him
and Ranma interfears with his way to Akane and 'pigtail girl'
(girl Ranma).
The story goes on as Ryoga hating Ranma because he
turned him to a pig when splashed by the cold water and he
loves Akane.They fight but stops when Akane want the 'pig'
as a pet that made Ranma mad. Later Shampoo tried to kill her
(Ranma girl form)and love Ranma boy form but shampoo loved Ranma
at the end and turns to a cat when a cold water get splashed.Then Mousse
follows Shampoo and tries to beat Ranma to win Shampoo but
fails and leave. But later on, he comes back and tries again
but fails again but this time he stays in Shampoo's house.
The next important Character is Ukyo. She came to revenge
of leaving her behind and live ten years on sorrows
and also promise not to like guys again. But she forgives him
because she didn't know that Ranma thought Ukyo as a guy. Also
it was mainly Genma's fault. Also it revealed that she was his
second fiancee and also love Ranma.