<s>
,	O
known	O
in	O
Japan	O
as	O
Theresia	B-Application
:	I-Application
Dear	I-Application
Emile	I-Application
,	O
is	O
a	O
psychological	O
horror	O
visual	O
novel	O
adventure	O
game	O
developed	O
by	O
WorkJam	O
and	O
published	O
by	O
Aksys	O
Games	O
,	O
released	O
exclusively	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
It	O
is	O
one	O
of	O
the	O
few	O
DS	B-Device
games	O
to	O
receive	O
an	O
ESRB	O
rating	O
of	O
M	O
for	O
"	O
Mature	O
"	O
and	O
a	O
CERO	O
rating	O
of	O
C	O
from	O
"	O
ages	O
15	O
and	O
older	O
"	O
.	O
</s>
<s>
Theresia	B-Application
is	O
a	O
psychological	O
horror	O
visual	O
novel	O
adventure	O
game	O
from	O
a	O
first-person	O
perspective	O
,	O
consisting	O
of	O
two	O
stories	O
,	O
each	O
sharing	O
a	O
common	O
background	O
:	O
an	O
unnamed	O
country	O
,	O
presumably	O
under	O
strict	O
martial	O
law	O
by	O
the	O
time	O
the	O
game	O
takes	O
place	O
,	O
is	O
engaged	O
in	O
a	O
fierce	O
and	O
bloody	O
war	O
with	O
an	O
unspecified	O
opposing	O
nation	O
.	O
</s>
<s>
The	O
game	O
makes	O
use	O
of	O
the	O
Nintendo	B-Device
DS	I-Device
touchscreen	O
capabilities	O
.	O
</s>
<s>
The	O
only	O
clue	O
is	O
the	O
word	O
Theresia	B-Application
scribbled	O
upon	O
a	O
piece	O
of	O
paper	O
.	O
</s>
<s>
This	O
was	O
called	O
"	O
Theresia	B-Application
"	O
,	O
her	O
last	O
name	O
.	O
</s>
<s>
Maylee	O
gave	O
her	O
the	O
vaccine	O
,	O
Theresia	B-Application
,	O
made	O
from	O
her	O
mother	O
's	O
blood	O
,	O
which	O
gave	O
her	O
amnesia	O
.	O
</s>
<s>
Martel	O
buries	O
the	O
dead	O
children	O
without	O
fear	O
of	O
being	O
infected	O
herself	O
,	O
and	O
the	O
fact	O
that	O
she	O
does	O
n't	O
eventually	O
leads	O
to	O
the	O
creation	O
of	O
the	O
vaccine	O
Theresia	B-Application
from	O
her	O
blood	O
(	O
it	O
's	O
theorized	O
Martel	O
and	O
Emile	O
share	O
the	O
same	O
father	O
,	O
since	O
the	O
blood	O
of	O
both	O
could	O
be	O
used	O
to	O
make	O
the	O
vaccine	O
,	O
meaning	O
they	O
shared	O
DNA	O
)	O
.	O
</s>
<s>
A	O
sequel	O
to	O
the	O
original	O
game	O
,	O
entitled	O
Theresia	B-Application
II	O
:	O
Dear	O
Lizst	O
,	O
was	O
released	O
in	O
Japan	O
for	O
mobile	O
phones	O
.	O
</s>
<s>
The	O
game	O
received	O
"	O
mixed	O
"	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
