<s>
is	O
a	O
Japanese	O
visual	O
novel	O
developed	O
by	O
Haikuo	O
Soft	O
,	O
and	O
was	O
originally	O
released	O
in	O
Japan	O
as	O
an	O
erotic	B-Application
game	I-Application
on	O
January	O
27	O
,	O
2006	O
,	O
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
A	O
PlayStation	B-Device
2	I-Device
version	O
titled	O
Yotsunoha	B-Application
:	O
A	O
Journey	O
of	O
Sincerity	O
,	O
published	O
by	O
Gadget	O
Soft	O
with	O
adult	O
content	O
removed	O
,	O
was	O
released	O
in	O
2008	O
,	O
and	O
an	O
English	O
version	O
for	O
Windows	B-Application
was	O
released	O
by	O
Sol	O
Press	O
in	O
2018	O
.	O
</s>
<s>
The	O
story	O
in	O
Yotsunoha	B-Application
focuses	O
on	O
the	O
appeal	O
of	O
the	O
four	O
female	O
main	O
characters	O
.	O
</s>
<s>
Yotsunoha	B-Application
has	O
since	O
then	O
spawned	O
two	O
spin-off	O
titles	O
,	O
Osananajimi	O
to	O
no	O
Kurashi	O
Kata	O
and	O
Nono	O
to	O
Kuraso	O
,	O
and	O
has	O
made	O
several	O
transitions	O
to	O
other	O
media	O
.	O
</s>
<s>
Gameplay	O
in	O
Yotsunoha	B-Application
requires	O
relatively	O
little	O
player	O
interaction	O
as	O
most	O
of	O
the	O
duration	O
of	O
the	O
game	O
is	O
spent	O
on	O
only	O
reading	O
the	O
text	O
that	O
appear	O
on	O
the	O
screen	O
,	O
representing	O
the	O
dialogue	O
between	O
the	O
numerous	O
characters	O
in	O
the	O
game	O
.	O
</s>
<s>
The	O
main	O
part	O
of	O
Yotsunoha	B-Application
's	O
story	O
takes	O
place	O
in	O
an	O
abandoned	O
school	O
named	O
and	O
its	O
surrounding	O
area	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
small	O
field	O
outside	O
of	O
the	O
school	O
building	O
,	O
housing	O
the	O
small	O
garden	O
where	O
the	O
characters	O
buried	O
their	O
time	B-Device
capsule	I-Device
prior	O
to	O
their	O
separation	O
.	O
</s>
<s>
This	O
is	O
further	O
expressed	O
by	O
the	O
characters	O
 '	O
emotions	O
before	O
and	O
after	O
their	O
separation	O
,	O
and	O
the	O
time	B-Device
capsule	I-Device
they	O
have	O
buried	O
.	O
</s>
<s>
Makoto	O
is	O
the	O
male	O
protagonist	O
of	O
Yotsunoha	B-Application
.	O
</s>
<s>
Nono	O
is	O
the	O
main	O
heroine	O
of	O
Yotsunoha	B-Application
.	O
</s>
<s>
The	O
story	O
of	O
Yotsunoha	B-Application
revolves	O
around	O
a	O
group	O
of	O
friends	O
,	O
reunited	O
after	O
being	O
separated	O
for	O
three	O
years	O
as	O
a	O
result	O
of	O
the	O
closure	O
of	O
Mochizuki	O
Academy	O
,	O
the	O
school	O
they	O
have	O
attended	O
in	O
together	O
.	O
</s>
<s>
Upon	O
arrival	O
,	O
Makoto	O
Yūki	O
,	O
the	O
protagonist	O
discovers	O
that	O
the	O
time	B-Device
capsule	I-Device
the	O
group	O
of	O
friends	O
buried	O
prior	O
to	O
their	O
separation	O
has	O
been	O
dug	O
up	O
.	O
</s>
<s>
After	O
being	O
reunited	O
,	O
Makoto	O
and	O
his	O
group	O
of	O
friends	O
decide	O
to	O
stay	O
overnight	O
,	O
looking	O
for	O
clues	O
left	O
behind	O
by	O
their	O
teacher	O
,	O
and	O
find	O
the	O
time	B-Device
capsule	I-Device
.	O
</s>
<s>
Yotsunoha	B-Application
is	O
the	O
second	O
commercial	O
project	O
of	O
the	O
then	O
dōjin	O
soft	O
developer	O
Haikuo	O
Soft	O
,	O
following	O
their	O
previous	O
work	O
on	O
Sukumizu	O
Police	O
.	O
</s>
<s>
Tatomu	O
and	O
Keikei	O
,	O
two	O
writers	O
who	O
have	O
previously	O
worked	O
on	O
_Summer	B-Application
,	O
planned	O
the	O
scenario	O
used	O
in	O
Yotsunoha	B-Application
,	O
while	O
work	O
on	O
the	O
computer	O
graphics	O
,	O
in	O
addition	O
to	O
character	O
designs	O
,	O
were	O
split	O
between	O
four	O
members	O
,	O
Hīde	O
,	O
Xsara	O
,	O
Koshino	O
and	O
Akira	O
Kasukabe	O
.	O
</s>
<s>
Several	O
improvements	O
have	O
been	O
made	O
to	O
the	O
PS2	B-Device
version	O
of	O
the	O
game	O
.	O
</s>
<s>
Hal	O
Film	O
Maker	O
,	O
the	O
studio	O
that	O
has	O
previously	O
adapted	O
Yotsunoha	B-Application
into	O
OVA	O
,	O
was	O
also	O
hired	O
for	O
the	O
computer	O
graphics	O
used	O
in	O
the	O
game	O
.	O
</s>
<s>
Yotsunoha	B-Application
was	O
first	O
available	O
to	O
the	O
public	O
as	O
a	O
free	O
game	O
demo	O
,	O
released	O
online	O
on	O
September	O
24	O
,	O
2005	O
,	O
which	O
gives	O
the	O
player	O
a	O
glimpse	O
into	O
the	O
story	O
and	O
gameplay	O
of	O
Yotsunoha	B-Application
.	O
</s>
<s>
The	O
game	O
was	O
later	O
released	O
as	O
a	O
limited	O
edition	O
containing	O
a	O
set	O
of	O
three	O
CD-ROMs	O
for	O
Microsoft	B-Application
Windows	I-Application
on	O
January	O
10	O
,	O
2006	O
.	O
</s>
<s>
A	O
PlayStation	B-Device
2	I-Device
version	O
titled	O
Yotsunoha	B-Application
:	O
A	O
Journey	O
of	O
Sincerity	O
with	O
adult	O
content	O
removed	O
published	O
by	O
Gadget	O
Soft	O
was	O
originally	O
released	O
on	O
August	O
28	O
,	O
2008	O
,	O
as	O
both	O
a	O
limited	O
edition	O
and	O
a	O
regular	O
edition	O
,	O
after	O
it	O
was	O
delayed	O
from	O
its	O
original	O
July	O
24	O
,	O
2008	O
,	O
release	O
date	O
.	O
</s>
<s>
Sol	O
Press	O
released	O
an	O
English	O
version	O
of	O
Yotsunoha	B-Application
on	O
July	O
27	O
,	O
2018	O
.	O
</s>
<s>
There	O
have	O
been	O
two	O
sets	O
of	O
Drama	O
CDs	O
based	O
on	O
Yotsunoha	B-Application
.	O
</s>
<s>
Yotsunoha	B-Application
was	O
also	O
adapted	O
into	O
a	O
manga	O
series	O
,	O
illustrated	O
by	O
Japanese	O
artist	O
Bow	O
Ditama	O
,	O
known	O
for	O
his	O
previous	O
work	O
on	O
Mahoromatic	O
.	O
</s>
<s>
Yotsunoha	B-Application
was	O
first	O
announced	O
to	O
be	O
adapted	O
into	O
a	O
two-episode	O
OVA	O
series	O
on	O
July	O
3	O
,	O
2007	O
,	O
at	O
the	O
Rondo	O
Robe	O
convention	O
hosted	O
in	O
Tokyo	O
.	O
</s>
<s>
Yotsunoha	B-Application
's	O
soundtrack	O
was	O
composed	O
solely	O
by	O
Ryō	O
Kyōna	O
,	O
who	O
has	O
previously	O
also	O
worked	O
on	O
Suku	O
Mizu	O
Porisu	O
,	O
the	O
first	O
commercial	O
project	O
of	O
Haikuo	O
Soft	O
.	O
</s>
<s>
Aside	O
from	O
the	O
in-game	O
soundtrack	O
,	O
he	O
has	O
also	O
composed	O
the	O
two	O
theme	O
songs	O
used	O
in	O
the	O
game	O
,	O
"	O
Yotsunoha	B-Application
"	O
,	O
the	O
opening	O
theme	O
sung	O
by	O
Chata	O
,	O
and	O
"	O
Shining	O
Orange	O
"	O
,	O
the	O
ending	O
theme	O
sung	O
by	O
Yui	O
Sakakibara	O
.	O
</s>
<s>
The	O
OVA	O
adaptation	O
of	O
Yotsunoha	B-Application
featured	O
a	O
new	O
set	O
of	O
soundtrack	O
,	O
written	O
by	O
artists	O
from	O
I	O
've	O
Sound	O
.	O
</s>
<s>
New	O
theme	O
songs	O
were	O
also	O
used	O
for	O
the	O
PlayStation	B-Device
2	I-Device
version	O
of	O
the	O
game	O
.	O
</s>
<s>
Based	O
on	O
the	O
sales	O
on	O
solely	O
Getchu.com,	O
Yotsunoha	B-Application
was	O
placed	O
at	O
fourth	O
place	O
out	O
of	O
twenty	O
when	O
it	O
was	O
first	O
released	O
in	O
January	O
2006	O
,	O
and	O
while	O
it	O
did	O
not	O
make	O
any	O
further	O
appearances	O
on	O
the	O
monthly	O
charts	O
,	O
it	O
was	O
placed	O
at	O
thirty-six	O
out	O
of	O
fifty	O
,	O
out	O
of	O
all	O
sales	O
recorded	O
during	O
the	O
first	O
half	O
of	O
the	O
year	O
on	O
the	O
same	O
website	O
.	O
</s>
<s>
According	O
to	O
a	O
national	O
ranking	O
of	O
bishōjo	B-Application
games	I-Application
based	O
on	O
sales	O
in	O
Japan	O
,	O
the	O
limited	O
edition	O
of	O
Yotsunoha	B-Application
was	O
ranked	O
eighth	O
out	O
of	O
fifty	O
when	O
it	O
was	O
first	O
listed	O
.	O
</s>
