<s>
is	O
a	O
Japanese	O
adult	B-Application
visual	O
novel	O
developed	O
by	O
Windmill	B-Application
released	O
on	O
October	O
21	O
,	O
2005	O
for	O
Windows	B-Application
PCs	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
later	O
ported	O
to	O
the	O
PlayStation	B-Device
2	I-Device
.	O
</s>
<s>
An	O
adult	B-Application
fan	O
disc	O
titled	O
Happiness	B-Application
!	I-Application
</s>
<s>
Re:Lucks	O
was	O
developed	O
by	O
Windmill	B-Application
's	O
sister	O
brand	O
Windmill	B-Application
Oasis	I-Application
and	O
released	O
on	O
July	O
28	O
,	O
2006	O
for	O
Windows	B-Application
.	O
</s>
<s>
Happiness	B-Application
!	I-Application
</s>
<s>
centers	O
around	O
Yūma	O
Kohinata	O
,	O
a	O
high	O
school	O
student	O
attending	O
Mizuhosaka	O
Academy	O
's	O
regular	O
section	O
of	O
the	O
school	O
,	O
and	O
his	O
close	O
friends	O
Jun	B-Application
Watarase	I-Application
and	O
Hachisuke	O
Takamizo	O
.	O
</s>
<s>
His	O
two	O
close	O
friends	O
are	O
Hachisuke	O
Takamizo	O
,	O
and	O
Jun	B-Application
Watarase	I-Application
,	O
who	O
seems	O
to	O
have	O
a	O
crush	O
on	O
him	O
.	O
</s>
<s>
Hachisuke	O
,	O
otherwise	O
known	O
simply	O
as	O
Hachi	O
,	O
is	O
one	O
of	O
Yūma	O
's	O
close	O
friends	O
and	O
hangs	O
out	O
with	O
him	O
and	O
Jun	B-Application
Watarase	I-Application
constantly	O
.	O
</s>
<s>
Jun	O
's	O
signature	O
attack	O
,	O
the	O
Patriot	O
Missile	O
Kick	B-Application
,	O
is	O
a	O
flying	B-Application
side	I-Application
kick	I-Application
,	O
normally	O
used	O
as	O
a	O
means	O
to	O
keep	O
Hachi	O
under	O
control	O
.	O
</s>
<s>
She	O
is	O
a	O
teacher	O
in	O
the	O
magical	B-Application
section	O
.	O
</s>
<s>
Happiness	B-Application
!	I-Application
</s>
<s>
is	O
the	O
sixth	O
title	O
developed	O
by	O
the	O
visual	O
novel	O
developer	O
Windmill	B-Application
.	O
</s>
<s>
Happiness	B-Application
!	I-Application
</s>
<s>
was	O
released	O
in	O
Japan	O
on	O
October	O
21	O
,	O
2005	O
as	O
a	O
limited	O
edition	O
version	O
,	O
playable	O
only	O
on	O
Windows	B-Application
PCs	I-Application
as	O
a	O
DVD	O
;	O
the	O
regular	O
edition	O
was	O
released	O
on	O
November	O
18	O
,	O
2005	O
.	O
</s>
<s>
A	O
fan	O
disc	O
titled	O
Happiness	B-Application
!	I-Application
</s>
<s>
Re:Lucks	O
was	O
released	O
on	O
July	O
28	O
,	O
2006	O
as	O
a	O
limited	O
edition	O
version	O
playable	O
on	O
a	O
Windows	B-Application
PC	I-Application
as	O
a	O
DVD	O
;	O
the	O
regular	O
edition	O
was	O
released	O
on	O
September	O
15	O
,	O
2006	O
.	O
</s>
<s>
Developed	O
by	O
Windmill	B-Application
's	O
sister	O
brand	O
Windmill	B-Application
Oasis	I-Application
,	O
the	O
staff	O
for	O
Re:Lucks	O
was	O
largely	O
the	O
same	O
as	O
the	O
original	O
game	O
,	O
except	O
for	O
the	O
scenario	O
staff	O
,	O
which	O
was	O
divided	O
between	O
Chatora	O
,	O
Celery	O
,	O
Eiji	O
Takashima	O
,	O
Hare	O
Kitagawa	O
and	O
Kei	O
Hozumi	O
.	O
</s>
<s>
Happiness	B-Application
!	I-Application
</s>
<s>
was	O
ported	O
to	O
the	O
PlayStation	B-Device
2	I-Device
by	O
Marvelous	O
Interactive	O
under	O
the	O
title	O
Happiness	B-Application
!	I-Application
</s>
<s>
Harvest	O
published	O
seven	O
novels	O
based	O
on	O
Happiness	B-Application
!	I-Application
</s>
<s>
On	O
January	O
25	O
,	O
2007	O
,	O
an	O
original	O
video	O
animation	O
(	O
OVA	O
)	O
episode	O
was	O
released	O
with	O
the	O
first	O
print	O
limited	O
edition	O
of	O
Happiness	B-Application
!	I-Application
</s>
<s>
The	O
opening	O
theme	O
is	O
"	O
Happiness	B-Application
!	I-Application
"	O
</s>
<s>
by	O
Ayumi	O
Murata	O
,	O
and	O
the	O
ending	O
theme	O
is	O
"	O
Magical	B-Application
Generation	O
"	O
by	O
Yui	O
Sakakibara	O
.	O
</s>
<s>
The	O
opening	O
theme	O
of	O
the	O
Happiness	B-Application
!	I-Application
</s>
<s>
visual	O
novel	O
is	O
"	O
Zero	O
"	O
by	O
Hiromi	O
Satō	O
,	O
and	O
the	O
ending	O
theme	O
is	O
"	O
Mezame	O
no	O
Asa	O
"	O
by	O
the	O
voice	O
actresses	O
of	O
the	O
four	O
main	O
heroines	O
(	O
Yui	O
Sakakibara	O
,	O
Mia	O
Naruse	O
,	O
Yura	O
Hinata	O
and	O
Oto	O
Agumi	O
)	O
,	O
performing	O
under	O
the	O
name	O
Happiness	B-Application
!	I-Application
</s>
<s>
The	O
opening	O
theme	O
of	O
Happiness	B-Application
!	I-Application
</s>
<s>
The	O
opening	O
theme	O
of	O
Happiness	B-Application
!	I-Application
</s>
<s>
In	O
a	O
2007	O
survey	O
of	O
Dengeki	O
G	O
's	O
Magazine	O
readers	O
,	O
Happiness	B-Application
!	I-Application
</s>
<s>
ranked	O
38th	O
in	O
a	O
list	O
of	O
"	O
the	O
most	O
interesting	O
bishōjo	B-Application
games	I-Application
"	O
;	O
a	O
five-way	O
tie	O
with	O
Tokimeki	O
Memorial	O
2	O
,	O
Tsukihime	B-Application
,	O
Welcome	B-Application
to	I-Application
Pia	I-Application
Carrot	I-Application
G.O.	I-Application
</s>
<s>
and	O
YU-NO	B-Application
:	I-Application
A	I-Application
girl	I-Application
who	I-Application
chants	I-Application
love	I-Application
at	I-Application
the	I-Application
bound	I-Application
of	I-Application
this	I-Application
world	I-Application
.	O
</s>
