<s>
,	O
also	O
known	O
just	O
as	O
,	O
is	O
a	O
Japanese	O
eroge	B-Application
visual	O
novel	O
game	O
,	O
originally	O
released	O
by	O
Ciel	O
on	O
25	O
June	O
2004	O
,	O
which	O
was	O
adapted	O
into	O
an	O
adult	O
anime	O
,	O
released	O
as	O
an	O
OVA	O
and	O
produced	O
by	O
Himajin	O
,	O
its	O
first	O
episode	O
being	O
published	O
on	O
28	O
July	O
2006	O
,	O
and	O
second	O
episode	O
on	O
27	O
June	O
2008	O
.	O
</s>
<s>
The	O
OVA	O
adaptation	O
of	O
Sora	B-Application
no	I-Application
Iro	I-Application
,	I-Application
Mizu	I-Application
no	I-Application
Iro	I-Application
was	O
released	O
across	O
DVD	O
on	O
2	O
episodes	O
,	O
each	O
spanning	O
about	O
30	O
minutes	O
.	O
</s>
