I changed the backstories of my characters.
Here are links:
https://medibang.com/picture/ti2310281031127860024848121/
https://medibang.com/picture/tb2308180156572930024848121/
https://medibang.com/picture/5b2308050334369850024848121/
https://medibang.com/picture/be2309141052565110024848121/
https://medibang.com/picture/k62310051043291870024848121/
https://medibang.com/picture/142310100920047940024848121/