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When Anzu meets Kaoru in that tunnel, she tells him it's been 8 years since
they last met. But when they leave the tunnel together, after sharing a kiss,
it has been 13 years and 102 days since he entered the cave. This should mean
that Anzu has also spent 5 years in the tunnel searching for Kaoru. Since 1
hour in it equals 100 days outside, she spent 18 hours searching for him. So,
Kaoru should have collapsed very far from the entrance of the tunnel.

Did I understand that correctly? From what I've read on the Internet, some say
there's an age gap of 8 years, and some say 13 years. Someone even claims
there's no age gap at all as, apparently, you also age in that tunnel. I don't
think that's the case, though, as Kaoru looks no different before and after
entering the tunnel (and 13 years should make a notable difference).

Maybe it should also be said that I've only watched the fan translation. And
it doesn't seem to be entirely accurate.


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2023-09-27T11:11:08.300
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2023-09-30T04:16:02.800
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question
the-tunnel-to-summer
How much older is Anzu compared to Kaoru at the end of the movie "Natsu e no Tunnel, Sayonara no Deguchi"?


8 years difference is correct, Touno was in the tunnel for 13 years while
Hanashiro has been inside for 5.

Touno enters the tunnel on August 2, 2005 in order to get his little sister
back. Note the date on his final text message to Hanashiro,

[![Touno's last text before entering the
tunnel](https://i.stack.imgur.com/WHNzl.png)](https://i.stack.imgur.com/WHNzl.png)

While living in the tunnel's conjured reality where his sister is still alive,
Touno continuously receives text messages from Hanashiro who never forgets
about him which eventually causes him to accept his sister's death and return
to the outside to be with Hanashiro. He texts her that he loves her from
inside the tunnel and starts running back before tripping and passing out.
Hanashiro receives Touno's text on May 1, 2013,

[![Touno's text from inside the
tunnel](https://i.stack.imgur.com/ja7f2.png)](https://i.stack.imgur.com/ja7f2.png)

which causes her to go into the tunnel to look for him. She presumably has to
run pretty deep into the tunnel to find him and then waits until he awakens
before they reconcile and head back out together.

In the end when the two of them leave the tunnel they state its been 13 years
and 102 days (since Touno went into the tunnel), the exact date isn't given
but that should be November 12, 2018.

EDIT: I just read the manga, haven't read the light novel but I assume it and
the manga are similar and overall the movie cut a lot of content. Regarding
the idea that there's no age gap and both Touno and Hanashiro are 30 in the
end (they were both 17 at the start). They did some experiments with the
tunnel to see how it worked and confirmed the tunnel causes time dilation
(i.e. time actually passes slower inside the tunnel compared to outside)
rather than accelerating the perception time (i.e. time passes at the same
speed inside or outside the tunnel it just feels faster inside). Hanashiro
spells out their actual ages in the end over drinks with Kawasaki and Kaga
(this is past the ending of the movie),

[![Hanashiro explains their
ages](https://i.stack.imgur.com/6W6SC.png)](https://i.stack.imgur.com/6W6SC.png)

Hanashiro says Touno is physically 17 (13 years in the tunnel) and she is 22
(8 years in the tunnel). You'll notice the age gap is 5 years not 8 here but
that's because the manga flips the intervals, Touno still goes to the tunnel
August 2, 2005 and leaves 13 years later but Hanashiro runs in after him 5
years later rather than 8. 8 years (as per the dates on the text messages) is
still correct for the movie.


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2023-09-28T02:15:51.110
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2023-09-30T04:16:02.800
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answer