<s>
is	O
a	O
Japanese	O
adult	B-Application
visual	O
novel	O
video	O
game	O
developer	O
and	O
brand	O
used	O
by	O
.	O
</s>
<s>
They	O
also	O
have	O
a	O
sub-brand	O
,	O
Windmill	B-Application
Oasis	O
,	O
which	O
produces	O
high-quality	O
games	O
with	O
2D	O
animation	O
.	O
</s>
<s>
(	O
2005	O
)	O
Happiness	B-Application
!	I-Application
</s>
<s>
(	O
2006	O
)	O
Happiness	B-Application
!	I-Application
</s>
<s>
(	O
2014	O
)	O
Happiness	B-Application
!	I-Application
</s>
