Is Tensura Nikki: Tensei shitara Slime Datta Ken good to watch with a friend?
Easy to drop in. Tensura Nikki: Tensei shitara Slime Datta Ken (Slime Diaries: That Time I Got Reincarnated as a Slime) is a TV series from Spring 2021 by 8 Bit, 8-Bit: 12 episodes, about 4.6 hours in total, finished, 7.64/10 across the listing sites.
Watching it together: easy to drop in. Episodic: you can start tonight without a plan, and a missed episode does not ruin it. about 4.6 hours for the run, 6 evenings at two a night. Rule: episodic, slice-of-life, or comedy/action ≤ 26 episodes → easy to drop in.
This verdict comes from rules over the title's format, length and tags, not from a review — the rule that fired is named above.
The facts
- Type
- TV series
- Episodes
- 12
- Episode length
- 23 min
- Total time
- about 4.6 hours — a weekend
- First aired
- Spring 2021
- Status
- Finished
- Studio
- 8 Bit, 8-Bit, 8Bit Corp, Inc., Eightbit
- Score
- 7.64/10 across the listing sites
- Tags
- adventure, manga adaptation, comedy, slice of life, demons, dragons, episodic, fantasy, found family, friendship, ghost, iyashikei (healing), isekai, magic, monsters, ninja, reincarnation, shounen, swordplay, violence
Data from anime-offline-database (ODbL) as of 2026-07-04; the score is the median of the scores the anime listing sites give it, on a 1–10 scale. Also listed as: Slime Diary That Time I Got Reincarnated as a Slime; The Slime Diaries: That Time I Got Reincarnated as a Slime; The Slime Diaries.
Do you and a friend both want to watch Tensura Nikki: Tensei shitara Slime Datta Ken?
Queue Up reads two public AniList lists and shows every anime you both have on Planning — with Tensura Nikki: Tensei shitara Slime Datta Ken flagged if it is one of them — then picks tonight's with a weighted roll or a bracket.
Or open it on AniList or MyAnimeList.
Related anime
More like this: adventure · manga adaptation · comedy · slice of life · demons · dragons · fantasy · found family · friendship · ghost · iyashikei (healing) · isekai · magic · monsters · ninja · reincarnation · shounen · swordplay.
Quick answers
- How long does it take to watch all of Tensura Nikki: Tensei shitara Slime Datta Ken?
- About 4.6 hours for all 12 episodes at 23 min each — a weekend; at two episodes a night that is 6 evenings.
- How many episodes does Tensura Nikki: Tensei shitara Slime Datta Ken have?
- 12 episodes of 23 min.
- Is Tensura Nikki: Tensei shitara Slime Datta Ken finished?
- Yes, Tensura Nikki: Tensei shitara Slime Datta Ken is finished (12 episodes), so you can watch the whole thing at your own pace.
- Is Tensura Nikki: Tensei shitara Slime Datta Ken good for a group?
- Yes. Tensura Nikki: Tensei shitara Slime Datta Ken is tagged comedy, the tags that survive a room full of people talking over the screen.
- Where is Tensura Nikki: Tensei shitara Slime Datta Ken listed?
- Tensura Nikki: Tensei shitara Slime Datta Ken is on AniList (id 116741) and MyAnimeList (id 41488); Queue Up keys it by its AniList id and shows it when it is on either of your lists.
Queue Up is a free tool: enter two AniList usernames and it ranks the anime you both want to watch, rolls one for tonight, runs a bracket to settle it and finds new anime that fit both of you. List data from AniList; title data: anime-offline-database (ODbL), dataset of 2026-07-04; page updated 2026-07-04. Not affiliated with AniList or MyAnimeList. Queue Up is a Somebody Decide program. How it works · Legal & privacy · All lists