PETITE kick-off meeting took place in the University of Tokyo and was hosted by prof. Masahiro Nomura between 21st and 24th of November 2023. Dr Bartlomiej Graczykowski from Adam Mickiewicz University, Dr Marianna Sledzinska and Onurcan Kaya from Catalan Institute of Nanoscience and Nanotechnology joined the meeting. Together with prof. Sebastian Volz, dr. Jose Ordonez-Miranda and dr Yunhui Wu we have enjoyed fruitful discussions and are looking forward to the future collaboration.