There are several websites with free scanlations. OneManga.com is a very good website, as it has a lot of different manga, and the translations are fairly accurate.
You can find free manga previews on websites like Shonen Jump, Crunchyroll, and Comixology. Additionally, many publishers offer free previews of manga on their official websites or on digital platforms like Kindle Unlimited.
You can't.
you can read manga online at the website; www.onemanga.com
One can view the manga One Piece online on the following websites: MangaSee, Manga Fox, Manga Stream, MangaHit, and many other free online manga resources.
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I recommend checking out websites like MangaDex, Ten Manga, or Manganelo for free French manga online. Remember to support the creators by purchasing official copies if possible.
Here: http://www.mangafox.com/manga/haunted_house/
Scanlation host websites like Manga Reader does have Special A by Minami Maki listed for free online reading. The manga series is completed.
On MangaReader.com
You can find it at mangafox.com; mangafox.com/manga/ultra_cute/
Manga Here provides both manga titles for free to read online. Shin Kotaro Makaritoru L is listed on the websites as not complete.
On MangaReader.com
Manga here or mangafox