Watching with subtitles allows you to hear the original Japanese voice cast. Miho Okasaki’s performance as Rimuru is highly praised and even earned her a "Newcomer of the Year" award.
If you prefer not to read while watching, the English dub for TenSura is widely considered to be high-quality. That Time I Got Reincarnated as a Slime subtitl...
For many, the subtitled version is the gold standard for authenticity. Watching with subtitles allows you to hear the