<p>According to the wikia he can,</p>
<ul>
<li>Remove memories</li>
<li>Alter memories</li>
<li>Put commands into the person's mind</li>
<li><strong>Allowing the person to do things that shouldnt be physically possible, such as commanding Josuke to fly backwards at 70 km/h,  <em>or allowing Koichi to speak Italian</em></strong>.</li>
<li>He can not read his own memory, but he may write commands on himself</li>
</ul>
<p><a href="https://jojo.fandom.com/wiki/Heaven%27s_Door" rel="nofollow noreferrer">Heaven's door - Jojo Wikia</a></p>

CC BY-SA 4.0
2022-03-24T01:48:13.910Z
2022-03-24T01:48:13.910Z
Pablo
<p>From what I know and have searched, Rohan himself is the only limit. Most enemy Stand users also have a counter to Heaven's Door: since it needs to touch what it affects, as long as they aren't touched, they're okay.</p>

CC BY-SA 4.0
2021-02-01T17:43:42.253Z
He could even possibly turn himself into a vampire without even needing the stone mask.
nothinlikepayinmyvisit
CC BY-SA 4.0
2020-09-05T11:20:09.693Z
2020-09-07T01:35:52.370Z
2020-09-07T01:35:52.370Z
Zahid Aslam
<p>In Part 4 of <em>JoJo's Bizarre Adventure</em>, we are introduced to Rohan Kishibe, who has the ability Heaven's Door. Heaven's Door turns people into books that detail their lives, which Rohan can read or write on to control those people.</p>

<ul>
<li><p>We first see this with Koichi, who is directed to never attack Rohan when they first meet and who is made to forget what happened.</p></li>
<li><p>Later, when they are walking through an alley and Koichi turns back, despite warnings not to do so, Rohan saves him by using Heaven's  Door to write that Koichi will be flung past the boundary of the alley.</p></li>
<li><p>In the side story <em>Thus spoke Rohan Kishibe</em>, we also see Rohan use Heaven's Door on octopi to get them to save him and Tonio when the two are drowning.</p></li>
</ul>

<p>What are the limits of this ability? I assumed that it was a question of what is physically or logically possible, rather like the limitations of Death Notes in <em>Death Note</em>.</p>

<p>However, I just saw the beginning of Part 5, where Koichi implies his fluency in Italian is to Rohan's use of Heaven's Door. This seems less plausible as something that could happen organically, when Koichi seems to have gone to Italy on short notice and when language acquisition takes a lot of time. While it could be interpreted as similar to memory manipulation, it's one thing for Rohan to take away <em>existing</em> memories, and another for him to add in something that never existed.</p>

<jojos-bizarre-adventure>
What are the limits of Heaven's Door?
# What are the limits of Heaven's Door?
Posted by: username_0 on 2019-06-07
In Part 4 of *JoJo's Bizarre Adventure*, we are introduced to Rohan Kishibe, who has the ability Heaven's Door. Heaven's Door turns people into books that detail their lives, which Rohan can read or write on to control those people.

* We first see this with Koichi, who is directed to never attack Rohan when they first meet and who is made to forget what happened.
* Later, when they are walking through an alley and Koichi turns back, despite warnings not to do so, Rohan saves him by using Heaven's Door to write that Koichi will be flung past the boundary of the alley.
* In the side story *Thus spoke Rohan Kishibe*, we also see Rohan use Heaven's Door on octopi to get them to save him and Tonio when the two are drowning.

What are the limits of this ability? I assumed that it was a question of what is physically or logically possible, rather like the limitations of Death Notes in *Death Note*.

However, I just saw the beginning of Part 5, where Koichi implies his fluency in Italian is to Rohan's use of Heaven's Door. This seems less plausible as something that could happen organically, when Koichi seems to have gone to Italy on short notice and when language acquisition takes a lot of time. While it could be interpreted as similar to memory manipulation, it's one thing for Rohan to take away *existing* memories, and another for him to add in something that never existed.
**Tags:** jojos-bizarre-adventure
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## 2 answers
### Answer by username_1 on 2022-03-24. Score: 1
According to the wikia he can,

* Remove memories
* Alter memories
* Put commands into the person's mind
* **Allowing the person to do things that shouldnt be physically possible, such as commanding Josuke to fly backwards at 70 km/h, *or allowing Koichi to speak Italian***.
* He can not read his own memory, but he may write commands on himself

[Heaven's door - Jojo Wikia](https://jojo.fandom.com/wiki/Heaven%27s_Door)
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### Answer by username_2 on 2020-09-05. Score: 0
From what I know and have searched, Rohan himself is the only limit. Most enemy Stand users also have a counter to Heaven's Door: since it needs to touch what it affects, as long as they aren't touched, they're okay.
> **Comments:**
> **username_3** (2021-02-01): He could even possibly turn himself into a vampire without even needing the stone mask.  
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