Sierra Rain Weston (Sienna)

Sienna is the character featured in Trigger Happy Havoc in chapter 5 when she tries to enter Hope's Peak Academy to stop the killing game.

APPEARANCE
Sierra is a lilac-blue cat with shoulder-length hair and purple and blue eyes. She wears a dress shirt with a vest over it and knee-length skirt.

In TOGETHER illustration, Sierra has a long-sleeved shirt with a lilac sweater over it, magenta skirt and white stockings.

CREATION AND DEVELOPMENT
As of April 2021, Cloudy wanted to draw another character that looks like Sienna. Instead, he developed Sienna and says that she is friends with the former Future Foundation founder, Liam.

As of May 18th, 2021, Cloudy uploaded his TOGETHER illustration with Liam (left) and Sienna (right), he wanted to think their friendship made him cry and stop feeling despair and get rid of Britany.

In September 2021 before his birthday, Cloudy finds a real name fot Sienna, but he chosen Sierra Rain because Sierra name is related to Sienna.