Open devtools on https://nhentai.net by Ctrl+Shift+C
or Ctrl+Shift+I
or Right-click -> Inspect
Take out that 2 values from Application -> Cookies -> https://nhentai.net
const sessionid = '...'
const cf_clearance = '...'
Copypaste script into Console
Increase rate if it returns Too many requests
const rate = 10
It will download json with that format. You can find most doujins by fullTitle
on e-hentai or sukebei or hitomi
[
{
"id": "495105",
"thumb": "https://t5.nhentai.net/galleries/2820610/thumb.jpg",
"title": "[Hatsuyasumi] Mukashi no Sugata ni Modotta Tsuma to no Sex wa Uwaki desu ka? | Is Having Sex With My Rejuvenated Wife Considered Cheating? [English] [Benri]",
"fullTitle": "[はつやすみ] 昔の姿に戻った妻とのセックスは浮気ですか? [英訳]"
},
...
]