Johansson grew up playing ice hockey with boys, including Malmö Redhawks defenceman Helge Grans, at the Tre Kronors Hockeyskola in her hometown of Ljungby, in south-central Sweden.
[1] At the age of 14, she joined Karlskrona HK, playing with their women's team in the Damettan and in the club's youth system.
After putting up 7 points in 25 games with HV71 in the 2017–18 SDHL season, and growing increasingly dissatisfied with the way girls were treated in the co-ed Troja-Ljungby youth teams, she left the city to sign with Linköping HC.
[3][4] She scored 7 points in 19 games in her first year with Linköping before being sidelined due to a concussion sustained while playing with the national U18 team.
[5] As a junior player, Johansson was a member of the Swedish national under-18 team during 2016 to 2020, and participated in the IIHF U18 Women's World Championship in 2018 and 2020.