I will live as a supporting role in this life

Read manhwa I will live as a supporting role in this life / 이번 생은 조연으로 살겠습니다 / I will live this life as a supporting actor / I Will Live This Life as a Supporting role
In the memory of my previous life, when I lived like a decorative doll for someone other than myself, I wanted to live without being swayed by anyone in this life.
To do so, I went to the academy to save money to spend the rest of my life comfortably in a quiet place.
…but why is everyone doing this to me?