A way to rip raw manga from official site (JP)?

[Kimlil235]

does anyone knew a way to rip raw manga from website? i know in github there's a python code for ripping renta/cmoa/bookwalker but when i try renta and cmoa one its not working (i belive they (renta/cmoa) have changed their reader's code). For bookwalker the manga i want needs JP connection to see the book and i cant afford 13$ for a VPN. please let me know, i dont want to SC and editing if at the end of the day i cant read it because i cant read the text due to low quality