Usagi Tsukino

Usagi Tsukino also known as Sailor Moon (and as Serena in the english version) is the main protagonist to Sailor Moon.

Episode 4
In episode 4 (episode 3 in the English dub) her foot is shown stepping out of a bath and later in the episode she is seen taking a bath two more times.

episode 113
She is shown bathing with Chibusa.