Lyon Vastia

Lyon Bastia (also known as Lyon Vastia and Reitei Lyon) is a character from Fairy Tail. As a child he bathed in the Hinoki Bathtub at Ur's house which he lived in and would bathe with Gray Fullbuster. As seen in the anime he would have ice in his bathwater for part of his training with adapting to the cold for his Ice Magic.

Chapter 37
In a Flashback of his and Gray Fullbuster's childhood training under Ur, one of the panels during a montage of their training and home life together shows both Lyon and Gray having a Bath together in a Hinoki Bathtub in Ur's house.

Episode 15
Just like in the manga, a flashback of Lyon and Gray Fullbuster's childhood training under Ur shows a moment of them taking a Bath together in Ur's Hinoki Bathtub. Though unlike the manga, the bath was changed to a Cold Bath filled with Ice where it is shown as a method of their training rather than just a regular bath. Lyon's facial expression has been changed as well, where as in the manga he had a serious look on his face here in the anime, he is shown with a smile on his face and hands behind his back.

Trivia

 * Lyon is the only Fairy Tail character to have had a bathing scene only in a flashback and not have any form of bathing scene in present tense.
 * Lyon is the first character in the series who wasn't a member of the Fairy Tail guild to have a bathing scene as well as the only member of Lamia Scale to have any form of bathing scene at all.