<s>
is	O
a	O
Japanese	O
adult	B-Application
visual	O
novel	O
,	O
developed	O
by	O
Tactics	O
,	O
a	O
brand	O
of	O
Nexton	O
,	O
released	O
on	O
May	O
29	O
,	O
1998	O
playable	O
on	O
Windows	B-Application
PCs	I-Application
.	O
</s>
<s>
The	O
erotic	O
content	O
was	O
later	O
removed	O
when	O
the	O
game	O
was	O
ported	O
to	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
A	O
sequel	B-Language
loosely	O
based	O
on	O
One	O
titled	O
One	O
2	O
:	O
Eien	O
no	O
Yakusoku	O
was	O
produced	O
by	O
BaseSon	O
,	O
another	O
brand	O
under	O
Nexton	O
,	O
and	O
was	O
released	O
in	O
April	O
2002	O
.	O
</s>
<s>
KSS	O
produced	O
a	O
four-episode	O
all	O
ages	O
original	O
video	O
animation	O
(	O
OVA	O
)	O
series	O
between	O
2001	O
and	O
2002	O
titled	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
.	O
Cherry	O
Lips	O
produced	O
a	O
three-episode	O
adult	B-Application
OVA	O
series	O
between	O
2003	O
and	O
2004	O
titled	O
One	O
:	O
True	O
Stories	O
.	O
</s>
<s>
In	O
the	O
adult	B-Application
versions	O
of	O
the	O
game	O
,	O
there	O
are	O
scenes	O
with	O
sexual	O
CGs	O
depicting	O
Kōhei	O
and	O
a	O
given	O
heroine	O
having	O
sex	O
.	O
</s>
<s>
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
is	O
Tactics	O
 '	O
third	O
title	O
,	O
after	O
Moon	B-Application
and	O
Dōsei	B-Application
.	O
</s>
<s>
and	O
Ishisan.One	O
was	O
first	O
released	O
on	O
May	O
29	O
,	O
1998	O
in	O
regular	O
and	O
limited	O
edition	O
versions	O
playable	O
on	O
Windows	B-Application
PCs	I-Application
in	O
CD-ROM	B-Device
format	O
;	O
the	O
limited	O
edition	O
included	O
the	O
game	O
's	O
first	O
original	O
soundtrack	O
.	O
</s>
<s>
On	O
April	O
1	O
,	O
1999	O
,	O
KID	O
released	O
an	O
all	O
ages	O
version	O
in	O
regular	O
and	O
limited	O
editions	O
playable	O
on	O
the	O
PlayStation	B-Device
under	O
the	O
title	O
Kagayaku	O
Kisetsu	O
e	O
;	O
the	O
PS	O
version	O
contained	O
full-voice	O
acting	O
.	O
</s>
<s>
On	O
September	O
14	O
,	O
2000	O
,	O
AI	O
System	O
released	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Memorial	O
Selection	O
,	O
which	O
was	O
essentially	O
the	O
original	O
game	O
,	O
though	O
the	O
price	O
was	O
cheaper	O
at	O
a	O
little	O
less	O
than	O
half	O
the	O
original	O
price	O
.	O
</s>
<s>
On	O
January	O
1	O
,	O
2003	O
,	O
a	O
full	O
voice	O
version	O
of	O
the	O
Windows	B-Application
game	O
was	O
released	O
by	O
Nexton	O
.	O
</s>
<s>
Magicseed	O
released	O
two	O
versions	O
without	O
adult	B-Application
content	O
:	O
one	O
playable	O
on	O
au	O
mobile	O
phones	O
on	O
March	O
1	O
,	O
2007	O
,	O
and	O
the	O
other	O
playable	O
on	O
SoftBank	O
3G	O
mobile	O
phones	O
on	O
July	O
2	O
,	O
2007	O
.	O
</s>
<s>
The	O
final	O
release	O
by	O
Nexton	O
was	O
on	O
June	O
1	O
,	O
2007	O
as	O
a	O
Windows	B-Application
Vista	I-Application
compatible	O
edition	O
for	O
the	O
PC	O
.	O
</s>
<s>
Gyutto	O
released	O
the	O
full-voice	O
,	O
Vista-compatible	O
edition	O
of	O
One	O
as	O
a	O
downloadable	O
version	O
on	O
February	O
26	O
,	O
2010	O
,	O
and	O
DMM	O
also	O
made	O
it	O
available	O
as	O
a	O
downloadable	O
version	O
on	O
June	O
15	O
,	O
2010	O
.	O
</s>
<s>
Regolith	O
Innovation	O
released	O
a	O
version	O
playable	O
on	O
Android	B-Application
devices	O
through	O
their	O
Drops	O
!	O
</s>
<s>
Four	O
adult	B-Application
novels	O
based	O
on	O
the	O
series	O
,	O
written	O
by	O
Midori	O
Tateyama	O
,	O
were	O
published	O
by	O
Movic	O
between	O
August	O
1998	O
and	O
April	O
2000	O
.	O
</s>
<s>
A	O
143-page	O
official	O
fan	O
book	O
,	O
which	O
focused	O
on	O
Moon	B-Application
and	O
One	O
,	O
was	O
released	O
by	O
the	O
publisher	O
Compass	O
in	O
October	O
1998	O
,	O
titled	O
Tactics	O
Moon	B-Application
&	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Creation	O
Image	O
Collection	O
.	O
</s>
<s>
ASCII	O
released	O
a	O
95-page	O
official	O
fan	O
book	O
for	O
the	O
PlayStation	B-Device
version	O
of	O
One	O
in	O
October	O
1999	O
.	O
</s>
<s>
Compass	O
also	O
released	O
a	O
manga	O
anthology	O
called	O
Tactics	O
Anthology	O
Comic	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Chapter	O
in	O
May	O
1999	O
.	O
</s>
<s>
Movic	O
released	O
a	O
two-volume	O
manga	O
anthology	O
called	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Comic	O
Anthology	O
between	O
October	O
and	O
December	O
1999	O
.	O
</s>
<s>
The	O
three-volume	O
series	O
is	O
titled	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Anthology	O
Comics	O
and	O
were	O
released	O
between	O
May	O
2002	O
and	O
February	O
2003	O
.	O
</s>
<s>
The	O
first	O
stand-alone	O
volume	O
called	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Dōjin	O
Selection	O
was	O
released	O
in	O
September	O
2003	O
,	O
and	O
the	O
second	O
stand-alone	O
volume	O
titled	O
Hidamari	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
was	O
released	O
in	O
January	O
2004	O
.	O
</s>
<s>
The	O
first	O
was	O
an	O
all	O
ages	O
OVA	O
titled	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
animated	O
by	O
Triple	O
X	O
and	O
produced	O
by	O
KSS	O
;	O
four	O
DVD	O
volumes	O
were	O
released	O
in	O
Japan	O
between	O
August	O
10	O
,	O
2001	O
and	O
May	O
24	O
,	O
2002	O
.	O
</s>
<s>
The	O
second	O
series	O
,	O
produced	O
by	O
Cherry	O
Lips	O
,	O
was	O
an	O
adult	B-Application
OVA	O
under	O
the	O
title	O
One	O
:	O
True	O
Stories	O
,	O
and	O
adapted	O
the	O
visual	O
novel	O
much	O
more	O
closely	O
.	O
</s>
<s>
A	O
remix	O
album	O
titled	O
Sea	O
Roars	O
came	O
bundled	O
with	O
the	O
full	O
voice	O
Windows	B-Application
edition	O
of	O
the	O
game	O
released	O
on	O
January	O
1	O
,	O
2003	O
.	O
</s>
<s>
A	O
soundtrack	O
for	O
the	O
all	O
ages	O
OVA	O
series	O
titled	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Music	O
from	O
the	O
Animation	O
(	O
also	O
known	O
as	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Vocal	O
Mini	O
album	O
)	O
was	O
released	O
on	O
August	O
10	O
,	O
2001	O
by	O
KSS	O
.	O
</s>
<s>
According	O
to	O
a	O
national	O
ranking	O
of	O
how	O
well	O
bishōjo	B-Application
games	I-Application
sold	O
nationally	O
in	O
Japan	O
,	O
the	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
Memorial	O
Selection	O
Windows	B-Application
release	O
ranked	O
in	O
on	O
seven	O
separate	O
occasions	O
.	O
</s>
<s>
The	O
One	O
full-voice	O
edition	O
for	O
Windows	B-Application
premiered	O
at	O
number	O
12	O
out	O
of	O
50	O
in	O
the	O
ranking	O
,	O
and	O
ranked	O
the	O
following	O
two	O
weeks	O
at	O
40	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
port	O
in	O
1999	O
was	O
reviewed	O
by	O
the	O
Japanese	O
video	O
game	O
magazine	O
Famitsu	O
,	O
which	O
gave	O
it	O
an	O
overall	O
score	O
27/40	O
.	O
</s>
<s>
The	O
One	O
:	O
True	O
Stories	O
adult	B-Application
OVA	O
series	O
was	O
reviewed	O
at	O
Mania.com	O
where	O
the	O
reviewer	O
remarked	O
,	O
"	O
One	O
:	O
True	O
Stories	O
is	O
the	O
perfect	O
kind	O
of	O
entry	O
level	O
or	O
couples	O
type	O
of	O
show	O
that	O
focuses	O
just	O
as	O
much	O
on	O
the	O
story	O
and	O
emotions	O
of	O
the	O
characters	O
as	O
the	O
sex	O
,	O
if	O
not	O
more	O
so.	O
"	O
</s>
<s>
The	O
characters	O
were	O
found	O
to	O
be	O
"	O
appealing	O
"	O
,	O
and	O
the	O
story	O
is	O
described	O
as	O
a	O
"	O
fantasy	B-Application
but	O
it	O
's	O
a	O
nice	O
fantasy.	O
"	O
</s>
<s>
Type-Moon	O
co-founder	O
Kinoko	O
Nasu	O
credits	O
the	O
PlayStation	B-Device
port	O
of	O
One	O
as	O
inspiring	O
him	O
to	O
be	O
a	O
video	O
game	O
scenario	O
writer	O
.	O
</s>
<s>
After	O
he	O
read	O
a	O
Famitsu	O
review	O
of	O
the	O
PlayStation	B-Device
port	O
(	O
in	O
issue	O
No	O
.	O
</s>
<s>
That	O
made	O
him	O
realize	O
that	O
he	O
could	O
write	O
an	O
interesting	O
story	O
in	O
a	O
video	O
game	O
format	O
,	O
leading	O
him	O
to	O
start	O
writing	O
Tsukihime	B-Application
and	O
distribute	O
a	O
free	O
promotional	O
version	O
of	O
the	O
game	O
at	O
Comiket	O
56	O
in	O
August	O
1999	O
.	O
</s>
<s>
Nasu	O
also	O
preferred	O
how	O
the	O
text	O
in	O
the	O
One	O
PlayStation	B-Device
port	O
is	O
overlaid	O
across	O
the	O
entire	O
game	O
screen	O
,	O
which	O
was	O
the	O
format	O
he	O
used	O
in	O
Tsukihime	B-Application
,	O
as	O
opposed	O
to	O
the	O
Windows	B-Application
version	O
of	O
One	O
that	O
has	O
the	O
text	O
in	O
a	O
dialogue	O
box	O
on	O
the	O
lower	O
portion	O
of	O
the	O
screen	O
.	O
</s>
<s>
Illustrator	O
and	O
Type-Moon	O
co-founder	O
Takashi	O
Takeuchi	O
was	O
already	O
a	O
fan	O
of	O
One	O
at	O
the	O
time	O
,	O
but	O
he	O
preferred	O
the	O
Windows	B-Application
version	O
.	O
</s>
<s>
Nasu	O
also	O
said	O
in	O
a	O
2001	O
interview	O
that	O
the	O
influence	O
from	O
One	O
was	O
so	O
strong	O
in	O
his	O
work	O
at	O
the	O
time	O
that	O
even	O
the	O
manner	O
in	O
which	O
the	O
protagonist	O
of	O
Tsukihime	B-Application
talks	O
is	O
very	O
similar	O
to	O
how	O
Kōhei	O
talks	O
in	O
One	O
.	O
</s>
<s>
After	O
the	O
release	O
of	O
One	B-Application
:	I-Application
Kagayaku	I-Application
Kisetsu	I-Application
e	I-Application
,	O
the	O
game	O
's	O
producer	O
YET11	O
was	O
the	O
only	O
staff	O
member	O
who	O
worked	O
on	O
the	O
game	O
who	O
was	O
later	O
credited	O
for	O
future	O
titles	O
produced	O
by	O
Tactics	O
,	O
such	O
as	O
Tactics	O
 '	O
next	O
visual	O
novel	O
Suzu	O
ga	O
Utau	O
Hi	O
in	O
1999	O
.	O
</s>
<s>
The	O
rest	O
of	O
the	O
main	O
production	O
staff	O
for	O
One	O
,	O
along	O
with	O
its	O
predecessor	O
Moon	B-Application
,	O
were	O
later	O
credited	O
with	O
the	O
creation	O
of	O
the	O
visual	O
novel	O
Kanon	O
under	O
the	O
brand	O
Key	O
attached	O
to	O
Visual	O
Arts	O
.	O
</s>
<s>
A	O
sequel	B-Language
loosely	O
based	O
on	O
the	O
One	O
visual	O
novel	O
titled	O
was	O
produced	O
by	O
the	O
visual	O
novel	O
studio	O
BaseSon	O
,	O
another	O
brand	O
under	O
Nexton	O
.	O
</s>
