<s>
,	O
subtitled	O
(	O
"	O
In	B-Application
search	I-Application
of	I-Application
the	I-Application
lost	I-Application
future	I-Application
"	O
in	O
French	O
)	O
,	O
sometimes	O
abbreviated	O
as	O
,	O
is	O
a	O
Japanese	O
adult	B-Application
visual	O
novel	O
developed	O
by	O
Trumple	O
and	O
released	O
for	O
Windows	B-Application
on	O
November	O
26	O
,	O
2010	O
.	O
</s>
<s>
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
is	O
a	O
romance	O
visual	O
novel	O
in	O
which	O
the	O
player	O
assumes	O
the	O
role	O
of	O
Sō	O
Akiyama	O
.	O
</s>
<s>
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
follows	O
a	O
branching	O
plot	O
line	O
with	O
multiple	O
endings	O
,	O
and	O
depending	O
on	O
the	O
decisions	O
that	O
the	O
player	O
makes	O
during	O
the	O
game	O
,	O
the	O
plot	O
will	O
progress	O
in	O
a	O
specific	O
direction	O
.	O
</s>
<s>
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
is	O
set	O
in	O
and	O
with	O
the	O
number	O
of	O
new	O
students	O
at	O
the	O
school	O
increasing	O
every	O
year	O
,	O
a	O
new	O
school	O
building	O
is	O
constructed	O
.	O
</s>
<s>
The	O
president	O
of	O
the	O
Judo	B-Application
Club	O
at	O
Uchihama	O
Academy	O
.	O
</s>
<s>
During	O
the	O
General	O
festival	O
,	O
the	O
Judo	B-Application
and	O
Karate	O
Club	O
have	O
a	O
friendly	O
match	O
.	O
</s>
<s>
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
is	O
the	O
sole	O
title	O
developed	O
by	O
the	O
visual	O
novel	O
studio	O
Trumple	O
.	O
</s>
<s>
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
was	O
released	O
on	O
November	O
26	O
,	O
2010	O
as	O
a	O
limited	O
edition	O
version	O
,	O
playable	O
as	O
a	O
DVD	O
on	O
a	O
Windows	B-Application
PC	I-Application
.	O
</s>
<s>
The	O
regular	O
edition	O
of	O
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
was	O
released	O
on	O
February	O
25	O
,	O
2011	O
.	O
</s>
<s>
Enterbrain	O
published	O
a	O
128-page	O
guidebook	O
for	O
the	O
game	O
titled	O
Ushinawareta	B-Application
Mirai	I-Application
o	I-Application
Motomete	I-Application
Visual	O
Fanbook	O
on	O
May	O
27	O
,	O
2011	O
.	O
</s>
<s>
The	O
visual	O
novel	O
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
has	O
three	O
theme	O
songs	O
sung	O
by	O
Miyuki	O
Hashimoto	O
:	O
the	O
opening	O
theme	O
,	O
the	O
insert	O
song	O
"	O
Ray	O
of	O
Memories	O
"	O
,	O
and	O
the	O
ending	O
theme	O
"	O
Salut.soleil	O
!	O
"	O
</s>
<s>
From	O
September	O
to	O
November	O
2010	O
,	O
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
ranked	O
twice	O
in	O
the	O
top	O
ten	O
in	O
national	O
PC	B-Device
game	O
pre-orders	O
in	O
Japan	O
.	O
</s>
<s>
In	B-Application
Search	I-Application
of	I-Application
the	I-Application
Lost	I-Application
Future	I-Application
ranked	O
first	O
in	O
terms	O
of	O
national	O
sales	O
of	O
PC	B-Device
games	O
in	O
Japan	O
in	O
November	O
2010	O
.	O
</s>
