By history do you mean bookmarks?if so each bookmark has a red “x” on the upper right hand corner that you press to delete but just keep in mind that you can not get that bookmark back. (:
Or if by history you mean how to delete from your homepage’s lists you go to the comic that you want to delete’s page and go under the “latest chapters” you’ll see an option to edit or delete the comic from your lists. Hope this helps!

Guys how do you remove unwanted manhwa in your history - really wanna remove a few they are so annoying. Regret why I even started reading them