She had been imprisoned awaiting trial for 100 days in Central Women Correctional Institution from 7 October 2021 to 14 January 2022, and she was sentenced to 6 months in prison for contempt of court along the way.

[1] where she joined the United Front of Thammasat and Demonstration group that enacted revolutionary reforms to the monarchy movement with Panusaya Sithijirawattanakul and Parit since 10 August 2020.

[5] Three days later Thung Mahamek police charged her with sedition along with Patsaravalee Tanakitvibulpon, Korakot Saengyenphan, Chanin Wongsri, Cholathit Chote-sawat.

[7] On 19 January 2021, she went to Iconsiam shopping mall, which was owned by Sirindhorn and Charoen Pokphand group, to protest by holding signs saying "Monopolizing the vaccine to give the spotlight to the monarchy", directly linked to Vajiralongkorn's Siam Bioscience drug company.

[8][9] On 29 April, Benja and a group of other students came to the Criminal Court to send an open letter demanding the release of imprisoned activists such as Parit Chiwarak, signed by over 10,000 supporters.

She criticized the government's mishandling of COVID-19 pandemic in Thailand, rebooting the economy, revocation of the junta constitution, reforms in state structures, and, lastly, the monarchy.