Marsha has always been quite the social butterfly growing up, but growing up she did not have that many friends, cause most found her "weird". She never made any true friends until she joined The Blossom Scouts. This is where she met her long childhood friends: Sophie, Shera, and Clover. The four of them made quite the group of inseparable friends, and she also definitely earned the most badges. This passion to collect badges might be due to her obsession of stickers, always fun to stick them onto things (like her own face).

Later on in life, she would develop this soft love of science, leading to her meeting another group of friends with common interests in high school: May, Ash, and Maddie. The four of them would form their own science team, performing various science experiments (that they could afford to do). Marsha even convinced Sophie to participate as their "lab rat" of sorts in exchange for free snacks. Marsha served as the team's chemist, often mixing random concoctions together and seeing what happens (and hoping it doesn't blow up in her face). Sometimes she would even use these skills to create delicious sweet drinks for her friends to try. She might be a bit airheaded at times, but she's always a good friend to have at her core.