Greasy Fork is available in English.
Use left and right arrow keys to switch between chapters.
// ==UserScript==
// @name Arrow Control - manganelo.com
// @namespace Qther
// @match https://manganelo.com/chapter/*
// @grant none
// @version 1.0
// @author Qther
// @description Use left and right arrow keys to switch between chapters.
// ==/UserScript==
document.onkeydown = evt => {
evt = evt || window.event;
if (evt.keyCode == 39) {
document.getElementsByClassName("navi-change-chapter-btn-next a-h")[0].click();
}
else if (evt.keyCode == 37) {
document.getElementsByClassName("navi-change-chapter-btn-prev a-h")[0].click();
}
}