Is JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai good to watch with a friend?
A couple of weeks. JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai (JoJo's Bizarre Adventure Part 4: Diamond is Unbreakable) is a TV series from Spring 2016 by David Production Inc.: 39 episodes, about 15 hours in total, finished, 8.39/10 across the listing sites.
Watching it together: a couple of weeks. 39 episodes is about 15 hours: 20 evenings at two a night. Agree on a pace before you start. Rule: 13–99 episodes without a lighter tag → a couple of weeks.
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
- 39
- Episode length
- 23 min
- Total time
- about 15 hours — a season of evenings
- First aired
- Spring 2016
- Status
- Finished
- Studio
- David Production Inc.
- Score
- 8.39/10 across the listing sites
- Tags
- action, adventure, aliens, manga adaptation, comedy, urban fantasy, crime, drama, gore, fantasy, shounen, ghost, school, mystery, superpowers, revenge, supernatural, time travel, tragedy
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.
Do you and a friend both want to watch JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai?
Queue Up reads two public AniList lists and shows every anime you both have on Planning — with JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai 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: action · adventure · aliens · manga adaptation · comedy · urban fantasy · crime · drama · fantasy · shounen · ghost · school · mystery · superpowers · revenge · supernatural · time travel · tragedy.
Quick answers
- How long does it take to watch all of JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai?
- About 15 hours for all 39 episodes at 23 min each — a season of evenings; at two episodes a night that is 20 evenings.
- How many episodes does JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai have?
- 39 episodes of 23 min.
- Is JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai finished?
- Yes, JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai is finished (39 episodes), so you can watch the whole thing at your own pace.
- Is JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai good for a group?
- Yes. JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai is tagged action, comedy, the tags that survive a room full of people talking over the screen.
- Where is JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai listed?
- JoJo no Kimyou na Bouken Part 4: Diamond wa Kudakenai is on AniList (id 21450) and MyAnimeList (id 31933); 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