<s>
,	O
is	O
a	O
Japanese	O
visual	O
novel	O
created	O
by	O
Idea	O
Factory	O
directed	O
at	O
the	O
female	O
market	O
,	O
known	O
as	O
an	O
otome	B-Application
game	I-Application
.	O
</s>
<s>
Released	O
on	O
July	O
6	O
,	O
2006	O
for	O
the	O
PlayStation	B-Device
2	I-Device
,	O
the	O
protagonist	O
is	O
a	O
teenage	O
girl	O
who	O
revisits	O
a	O
small	O
village	O
she	O
remembers	O
from	O
her	O
childhood	O
and	O
gets	O
caught	O
up	O
in	O
her	O
family	O
's	O
history	O
and	O
supernatural	O
dangers	O
surrounding	O
it	O
.	O
</s>
<s>
Some	O
characters	O
from	O
this	O
property	O
are	O
featured	O
in	O
the	O
PSP	B-Operating_System
game	O
B	O
's	O
LOG	O
Party	O
,	O
released	O
on	O
May	O
20	O
,	O
2010	O
.	O
</s>
<s>
The	O
main	O
protagonist	O
of	O
the	O
series	O
,	O
though	O
her	O
name	O
is	O
changeable	O
in	O
the	O
PS2	B-Device
and	O
DS	B-Device
version	O
.	O
</s>
<s>
He	O
has	O
powerful	O
strength	O
,	O
and	O
finds	O
out	O
he	O
is	O
the	O
descendant	O
of	O
the	O
oni	B-Application
,	O
whose	O
power	O
is	O
very	O
hard	O
to	O
control	O
,	O
especially	O
when	O
near	O
the	O
sealed	O
magical	O
sword	O
Onikirimaru	O
.	O
</s>
<s>
Hiiro	B-Application
no	I-Application
Kakera	I-Application
was	O
developed	O
by	O
Idea	O
Factory	O
and	O
released	O
on	O
July	O
6	O
,	O
2006	O
for	O
the	O
PlayStation	B-Device
2	I-Device
(	O
PS2	B-Device
)	O
as	O
the	O
first	O
in	O
the	O
Hiiro	B-Application
no	I-Application
Kakera	I-Application
series	O
.	O
</s>
<s>
The	O
next	O
two	O
games	O
were	O
released	O
in	O
2007	O
and	O
the	O
PS2	B-Device
:	O
on	O
February	O
15	O
and	O
on	O
August	O
9	O
.	O
followed	O
on	O
October	O
1	O
,	O
2009	O
for	O
the	O
PS2	B-Device
,	O
and	O
was	O
later	O
ported	O
to	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
(	O
PSP	B-Operating_System
)	O
on	O
August	O
19	O
,	O
2010	O
and	O
the	O
Nintendo	B-Device
DS	I-Device
(	O
NDS	B-Device
)	O
on	O
June	O
16	O
,	O
2011	O
.	O
was	O
released	O
on	O
August	O
7	O
,	O
2008	O
for	O
the	O
PS2	B-Device
,	O
and	O
was	O
later	O
ported	O
to	O
the	O
PSP	B-Operating_System
on	O
April	O
15	O
,	O
2010	O
and	O
the	O
NDS	B-Device
on	O
August	O
25	O
,	O
2011	O
.	O
</s>
<s>
was	O
released	O
for	O
the	O
PS2	B-Device
on	O
October	O
1	O
,	O
2009	O
and	O
was	O
later	O
ported	O
to	O
the	O
PSP	B-Operating_System
on	O
September	O
30	O
,	O
2010	O
.	O
was	O
the	O
first	O
game	O
in	O
the	O
series	O
released	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
(	O
PS3	B-Operating_System
)	O
on	O
May	O
26	O
,	O
2011	O
.	O
followed	O
on	O
the	O
PSP	B-Operating_System
on	O
July	O
14	O
,	O
2011	O
.	O
was	O
released	O
for	O
the	O
PSP	B-Operating_System
on	O
May	O
17	O
,	O
2012	O
.	O
,	O
set	O
in	O
the	O
Heian	O
period	O
unlike	O
the	O
rest	O
of	O
the	O
installments	O
,	O
was	O
released	O
also	O
for	O
the	O
PSP	B-Operating_System
on	O
September	O
20	O
,	O
2012	O
.	O
</s>
