<s>
Operation	B-Application
Sanctuary	I-Application
,	O
known	O
in	O
Japan	O
as	O
or	O
for	O
short	O
,	O
is	O
a	O
Japanese	O
adult	B-Application
visual	O
novel	O
developed	O
by	O
August	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
July	O
20	O
,	O
2003	O
,	O
for	O
Windows	B-Application
using	O
the	O
NScripter	B-Application
engine	O
.	O
</s>
<s>
The	B-Operating_System
Dreamcast	I-Operating_System
and	O
PlayStation	B-Device
2	I-Device
versions	O
were	O
released	O
by	O
Alchemist	O
in	O
2004	O
.	O
</s>
<s>
An	O
anime	O
adaptation	O
was	O
broadcast	O
in	O
Japan	O
in	O
2004	O
,	O
and	O
originally	O
ran	O
from	O
June	O
30	O
,	O
to	O
September	O
22.The	O
title	O
references	O
a	O
haiku	B-Language
by	O
Yosa	O
Buson	O
:	O
"	O
Nanohana	O
ya	O
tsuki	O
wa	O
higashi	O
ni	O
hi	O
wa	O
nishi	O
ni.	O
"	O
</s>
<s>
A	O
manga	O
for	O
Tsuki	B-Application
wa	I-Application
Higashi	I-Application
ni	I-Application
Hi	I-Application
wa	I-Application
Nishi	I-Application
ni	I-Application
,	O
illustrated	O
by	O
Takeda	O
Mika	O
,	O
began	O
serialization	O
in	O
Dengeki	O
G	O
's	O
Magazine	O
on	O
January	O
27	O
,	O
2005	O
.	O
</s>
<s>
A	O
novel	O
series	O
for	O
Tsuki	B-Application
wa	I-Application
Higashi	I-Application
ni	I-Application
Hi	I-Application
wa	I-Application
Nishi	I-Application
ni	I-Application
was	O
written	O
by	O
Okada	O
Runa	O
and	O
published	O
by	O
Harvest	O
.	O
</s>
<s>
A	O
light	O
novel	O
called	O
Tsuki	B-Application
wa	I-Application
Higashi	I-Application
ni	I-Application
Hi	I-Application
wa	I-Application
Nishi	I-Application
ni	I-Application
:	O
Tōhonseisō	O
School	O
Life	O
was	O
published	O
by	O
Gakken	O
on	O
December	O
25	O
,	O
2004	O
,	O
and	O
written	O
by	O
Kano	O
Kiichi	O
.	O
</s>
<s>
Tsuki	B-Application
wa	I-Application
Higashi	I-Application
ni	I-Application
Hi	I-Application
wa	I-Application
Nishi	I-Application
ni	I-Application
's	O
first	O
drama	O
CD	O
was	O
released	O
on	O
February	O
25	O
,	O
2004	O
.	O
</s>
<s>
A	O
second	O
drama	O
CD	O
was	O
released	O
on	O
April	O
23	O
,	O
2004	O
,	O
entitled	O
Tsuki	B-Application
wa	I-Application
Higashi	I-Application
ni	I-Application
Hi	I-Application
wa	I-Application
Nishi	I-Application
ni	I-Application
-	O
Groovin	O
 '	O
White	O
Vacation	O
.	O
</s>
