The Pancasila student profile strengthening project is part of the independent curriculum which is expected to enhance the students’ Pancasila profile. This research aims to analyze the students’ character improvement after the first term implementation of P5 with the sustainable lifestyle topic through project-based learning. The characteristics that are analyzed include: respecting differences, cooperation, and creativity. This research uses classroom action research methods with quantitative models based on the result of the improvement graphs of the students. The data sources are 25 eighth graders of junior high students. The data is taken from the character survey (pre-test) before the first term of P5 starts, observation sheets which will be filled out by the P5 advisor teachers along with the module, and the post-character survey (peer assessment). The data will be analyzed by using tables and graphs to show the development and improvement of each student during the first term of P5 implementation. Based on the result of the research, some of the students are having improvement in respecting others, cooperation, and creativity. Only a few of the students have less significant character improvement and constant.