<s>
is	O
a	O
Japanese	O
dating	O
sim	O
by	O
Shoeisha	O
,	O
released	O
on	O
March	O
14	O
,	O
1997	O
,	O
for	O
Windows	B-Application
95	I-Application
in	O
Japan	O
.	O
</s>
<s>
A	O
PlayStation	B-Device
,	O
and	O
Sega	B-Device
Saturn	I-Device
version	O
were	O
soon	O
released	O
as	O
well	O
.	O
</s>
<s>
It	O
is	O
a	O
female	O
ninja	B-Application
dating	O
sim	O
,	O
as	O
well	O
as	O
a	O
gal	B-Application
game	I-Application
.	O
</s>
<s>
It	O
is	O
said	O
that	O
the	O
lesbian	O
elements	O
appear	O
to	O
be	O
stronger	O
in	O
the	O
PlayStation	B-Device
version	O
.	O
</s>
<s>
There	O
is	O
a	O
world	O
where	O
shinobi	B-Application
(	O
ninja	B-Application
and	O
kunoichi	B-Application
)	O
are	O
recognized	O
.	O
</s>
<s>
The	O
top	O
graduate	O
is	O
given	O
a	O
special	O
privilege	O
to	O
become	O
a	O
freelance	O
Shinobi	B-Application
.	O
</s>
<s>
Johnny	O
is	O
a	O
mysterious	O
ninja	B-Application
who	O
appears	O
when	O
duties	O
are	O
completed	O
.	O
</s>
<s>
In	O
Japan	O
,	O
"	O
Kunoichi	B-Application
"	O
means	O
a	O
female	O
ninja	B-Application
.	O
</s>
