<s>
It	O
is	O
a	O
part	O
of	O
their	O
larger	O
The	O
Legend	O
of	O
Heroes	O
franchise	O
and	O
began	O
with	O
the	O
release	O
of	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
in	O
2004	O
.	O
</s>
<s>
Trails	O
features	O
a	O
large	O
cast	O
of	O
characters	O
and	O
consists	O
of	O
several	O
interconnected	O
story	O
arcs	O
set	O
in	O
different	O
territories	O
on	O
the	O
continent	O
of	O
Zemuria	O
:	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
,	O
Crossbell	O
,	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
,	O
and	O
Kuro	B-Device
no	I-Device
Kiseki	I-Device
.	O
</s>
<s>
It	O
began	O
as	O
the	O
sixth	O
entry	O
in	O
Falcom	O
's	O
The	O
Legend	O
of	O
Heroes	O
franchise	O
with	O
the	O
release	O
of	O
The	B-Application
Legend	I-Application
of	I-Application
Heroes	I-Application
VI	I-Application
:	I-Application
Trails	I-Application
in	I-Application
the	I-Application
Sky	I-Application
in	O
2004	O
.	O
</s>
<s>
The	O
games	O
are	O
made	O
using	O
proprietary	O
game	O
engines	O
by	O
Falcom	O
,	O
with	O
the	O
exception	O
being	O
Sony	O
's	O
PhyreEngine	B-General_Concept
used	O
for	O
the	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
games	O
.	O
</s>
<s>
The	O
series	O
is	O
heavily	O
influenced	O
by	O
anime	O
and	O
features	O
several	O
archetypes	B-Language
and	O
tropes	O
common	O
to	O
it	O
.	O
</s>
<s>
Rather	O
than	O
being	O
unique	O
to	O
any	O
specific	O
character	O
or	O
monster	O
like	O
Crafts	O
,	O
Arts	O
are	O
determined	O
by	O
the	O
type	O
and	O
specific	O
arrangement	O
of	O
Quartz	O
,	O
items	O
cited	O
for	O
its	O
similarity	O
to	O
Materia	O
from	O
Final	B-Application
Fantasy	I-Application
VII	I-Application
.	O
</s>
<s>
Each	O
successive	O
game	O
usually	O
introduces	O
new	O
gameplay	O
mechanics	O
,	O
such	O
as	O
the	O
addition	O
of	O
Persona-like	O
social	O
events	O
in	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
or	O
the	O
optional	O
action-based	O
combat	O
system	O
in	O
Kuro	B-Device
no	I-Device
Kiseki	I-Device
.	O
</s>
<s>
Trails	O
is	O
split	O
into	O
four	O
interconnected	O
story	O
arcs	O
:	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
,	O
Crossbell	O
,	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
,	O
and	O
Kuro	B-Device
no	I-Device
Kiseki	I-Device
.	O
</s>
<s>
The	O
first	O
arc	O
of	O
the	O
series	O
,	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
,	O
consists	O
of	O
three	O
games	O
.	O
</s>
<s>
They	O
are	O
set	O
within	O
the	O
Liberl	O
Kingdom	O
and	O
primarily	O
follow	O
Estelle	B-Application
Bright	I-Application
and	O
her	O
adopted	O
brother	O
Joshua	O
,	O
members	O
of	O
the	O
Bracer	O
's	O
Guild	O
,	O
a	O
civilian	O
peacekeeping	O
and	O
monster-hunting	O
organization	O
.	O
</s>
<s>
The	O
first	O
game	O
,	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
,	O
released	O
in	O
Japan	O
in	O
2004	O
for	O
Windows	O
and	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
(	O
PSP	B-Operating_System
)	O
in	O
2006	O
.	O
</s>
<s>
The	O
second	O
game	O
,	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
SC	I-Application
,	O
continues	O
the	O
plot	O
of	O
the	O
first	O
and	O
was	O
released	O
in	O
Japan	O
for	O
Windows	O
in	O
2006	O
and	O
the	O
PSP	B-Operating_System
the	O
following	O
year	O
.	O
</s>
<s>
The	O
third	O
game	O
,	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
the	I-Application
3rd	I-Application
,	O
follows	O
Septian	O
Church	O
agent	O
Kevin	O
Graham	O
,	O
who	O
is	O
sent	O
to	O
an	O
otherworldly	O
dimension	O
known	O
as	O
Phantasma	O
alongside	O
many	O
characters	O
from	O
the	O
previous	O
two	O
games	O
.	O
</s>
<s>
It	O
was	O
released	O
in	O
Japan	O
in	O
2007	O
for	O
Windows	O
and	O
the	O
PSP	B-Operating_System
in	O
2008	O
.	O
</s>
<s>
It	O
follows	O
rookie	O
police	O
investigator	O
Lloyd	O
Bannings	O
and	O
the	O
Special	B-Application
Support	I-Application
Section	I-Application
,	O
consisting	O
of	O
himself	O
,	O
Elie	O
McDowell	O
,	O
Randy	O
Orlando	O
,	O
and	O
Tio	O
Plato	O
,	O
as	O
they	O
protect	O
the	O
city	O
from	O
criminal	O
activity	O
and	O
the	O
geopolitical	O
situation	O
that	O
looms	O
over	O
it	O
.	O
</s>
<s>
The	O
first	O
game	O
,	O
Trails	B-Application
from	I-Application
Zero	I-Application
,	O
was	O
released	O
in	O
Japan	O
for	O
the	O
PSP	B-Operating_System
in	O
2010	O
.	O
</s>
<s>
The	O
second	O
,	O
Trails	B-Application
to	I-Application
Azure	I-Application
,	O
was	O
released	O
in	O
Japan	O
for	O
the	O
PSP	B-Operating_System
in	O
2011	O
.	O
</s>
<s>
They	O
released	O
Trails	B-Application
from	I-Application
Zero	I-Application
in	O
2022	O
and	O
Trails	B-Application
to	I-Application
Azure	I-Application
in	O
2023	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
Nintendo	B-Application
Switch	I-Application
,	O
and	O
Windows	O
.	O
</s>
<s>
The	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
arc	O
follows	O
Rean	O
Schwarzer	O
and	O
Class	O
VII	O
,	O
a	O
specialized	O
group	O
of	O
students	O
attending	O
Thors	O
Military	O
Academy	O
in	O
the	O
Erebonian	O
Empire	O
.	O
</s>
<s>
The	O
first	O
game	O
,	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
PlayStation	B-Device
Vita	I-Device
in	O
Japan	O
in	O
2013	O
.	O
</s>
<s>
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
II	I-Application
directly	O
continued	O
with	O
the	O
events	O
of	O
the	O
first	O
game	O
and	O
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Vita	O
in	O
2014	O
.	O
</s>
<s>
The	O
third	O
and	O
fourth	O
games	O
,	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
III	I-Application
and	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
IV	I-Application
,	O
follow	O
Rean	O
in	O
his	O
new	O
role	O
as	O
an	O
instructor	O
of	O
a	O
new	O
Class	O
VII	O
at	O
a	O
branch	O
campus	O
of	O
Thors	O
.	O
</s>
<s>
Cold	B-Application
Steel	I-Application
III	I-Application
was	O
released	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
(	O
PS4	B-Operating_System
)	O
in	O
Japan	O
in	O
2017	O
,	O
while	O
Cold	B-Application
Steel	I-Application
IV	I-Application
released	O
the	O
following	O
year	O
.	O
</s>
<s>
A	O
fifth	O
game	O
,	O
Trails	B-Application
into	I-Application
Reverie	I-Application
,	O
was	O
released	O
in	O
2020	O
and	O
acts	O
as	O
an	O
epilogue	O
to	O
both	O
the	O
Crossbell	O
and	O
Erebonia	O
arcs	O
and	O
follows	O
Rean	O
,	O
Lloyd	O
,	O
and	O
a	O
masked	O
character	O
known	O
as	O
C	O
.	O
</s>
<s>
English	O
versions	O
of	O
Cold	O
Steel	O
and	O
Cold	B-Application
Steel	I-Application
II	I-Application
were	O
released	O
by	O
Xseed	O
Games	O
in	O
2015	O
and	O
2016	O
,	O
respectively	O
.	O
</s>
<s>
NIS	O
America	O
would	O
release	O
Cold	B-Application
Steel	I-Application
III	I-Application
in	O
2019	O
,	O
Cold	B-Application
Steel	I-Application
IV	I-Application
in	O
2020	O
,	O
and	O
is	O
scheduled	O
to	O
release	O
Trails	B-Application
into	I-Application
Reverie	I-Application
in	O
2023	O
.	O
</s>
<s>
A	O
box	O
set	O
containing	O
all	O
five	O
games	O
was	O
released	O
in	O
Japan	O
for	O
the	O
PS4	B-Operating_System
in	O
July	O
2022	O
.	O
</s>
<s>
Kuro	B-Device
no	I-Device
Kiseki	I-Device
follows	O
Van	O
Arkride	O
,	O
a	O
mix	O
of	O
a	O
detective	O
and	O
bounty	O
hunter	O
known	O
as	O
a	O
Spriggan	O
,	O
and	O
high	O
schooler	O
Agnes	O
Claudel	O
,	O
who	O
hires	O
Van	O
to	O
search	O
for	O
eight	O
artifacts	O
that	O
hold	O
the	O
key	O
to	O
solving	O
an	O
apocalyptic	O
mystery	O
.	O
</s>
<s>
The	O
first	O
game	O
,	O
Kuro	B-Device
no	I-Device
Kiseki	I-Device
,	O
was	O
released	O
in	O
Japan	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
in	O
2021	O
.	O
</s>
<s>
A	O
second	O
game	O
,	O
Kuro	B-Device
no	I-Device
Kiseki	I-Device
II	O
–	O
Crimson	O
Sin	O
,	O
was	O
released	O
in	O
Japan	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
and	O
PlayStation	B-Device
5	I-Device
in	O
September	O
2022	O
.	O
</s>
<s>
Ys	B-Application
vs.	I-Application
Trails	I-Application
in	I-Application
the	I-Application
Sky	I-Application
is	O
a	O
crossover	O
fighting	O
game	O
featuring	O
characters	O
from	O
Trails	O
and	O
Falcom	O
's	O
Ys	O
series	O
.	O
</s>
<s>
The	B-Application
Legend	I-Application
of	I-Application
Nayuta	I-Application
:	I-Application
Boundless	I-Application
Trails	I-Application
was	O
released	O
in	O
Japan	O
in	O
July	O
2012	O
and	O
is	O
scheduled	O
for	O
release	O
worldwide	O
in	O
2023	O
.	O
</s>
<s>
It	O
does	O
not	O
take	O
place	O
within	O
Zemuria	O
and	O
also	O
differs	O
from	O
the	O
rest	O
of	O
the	O
series	O
by	O
being	O
an	O
action	B-Application
role-playing	I-Application
game	I-Application
.	O
</s>
<s>
The	B-Application
Legend	I-Application
of	I-Application
Heroes	I-Application
:	I-Application
Akatsuki	I-Application
no	I-Application
Kiseki	I-Application
is	O
a	O
Japanese-only	O
gacha	O
game	O
developed	O
by	O
UserJoy	O
Technology	O
.	O
</s>
<s>
It	O
was	O
first	O
released	O
in	O
2016	O
as	O
a	O
browser	B-Protocol
game	I-Protocol
before	O
being	O
ported	O
to	O
several	O
other	O
platforms	O
.	O
</s>
<s>
An	O
original	O
video	O
animation	O
adaptation	O
of	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
SC	I-Application
was	O
produced	O
by	O
Kinema	O
Citrus	O
;	O
part	O
one	O
released	O
in	O
November	O
2011	O
while	O
the	O
second	O
was	O
released	O
in	O
February	O
2012	O
.	O
</s>
<s>
The	B-Application
Legend	I-Application
of	I-Application
Heroes	I-Application
:	I-Application
Trails	I-Application
of	I-Application
Cold	I-Application
Steel	I-Application
–	O
Northern	O
War	O
,	O
an	O
anime	O
television	O
series	O
by	O
Tatsunoko	O
Production	O
,	O
began	O
airing	O
in	O
January	O
2023	O
.	O
</s>
<s>
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
also	O
received	O
a	O
novelization	O
.	O
</s>
<s>
Other	O
manga	O
,	O
such	O
as	O
The	B-Application
Legend	I-Application
of	I-Application
Heroes	I-Application
:	I-Application
Trails	I-Application
from	I-Application
Zero	I-Application
Pre-Story	O
-The	O
Ring	O
of	O
Judgment	O
-	O
and	O
Trails	B-Application
in	I-Application
the	I-Application
Sky	I-Application
Gaiden	O
:	O
The	O
Tale	O
of	O
Loewe	O
,	O
are	O
original	O
works	O
that	O
provide	O
backstory	O
to	O
certain	O
characters	O
.	O
</s>
<s>
Transcripts	O
of	O
two	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
dramas	O
were	O
translated	O
by	O
Xseed	O
Games	O
and	O
published	O
online	O
as	O
promotional	O
material	O
for	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
II	I-Application
.	O
</s>
<s>
A	O
musical	O
stage	O
play	O
based	O
on	O
Trails	B-Application
of	I-Application
Cold	I-Application
Steel	I-Application
ran	O
in	O
January	O
2017	O
.	O
</s>
<s>
Trails	O
has	O
been	O
praised	O
for	O
its	O
worldbuilding	O
and	O
character	O
arcs	O
,	O
with	O
its	O
scope	O
and	O
sense	O
of	O
continuity	O
being	O
compared	O
to	O
the	O
A	O
Song	O
of	O
Ice	O
and	O
Fire	O
novels	O
by	O
George	O
R	O
.	O
R	O
.	O
Martin	O
,	O
the	O
Forgotten	B-Application
Realms	I-Application
setting	O
for	O
Dungeons	O
&	O
Dragons	O
,	O
and	O
the	O
Marvel	O
Cinematic	O
Universe	O
.	O
</s>
<s>
Characters	O
or	O
other	O
elements	O
from	O
Trails	O
have	O
been	O
featured	O
in	O
crossover	O
promotions	O
with	O
other	O
games	O
,	O
including	O
Monster	B-Application
Hunter	I-Application
Frontier	I-Application
G	I-Application
,	O
Chain	B-Application
Chronicle	I-Application
V	I-Application
,	O
Dead	B-Application
or	I-Application
Alive	I-Application
5	I-Application
,	O
Fantasy	B-Application
Earth	I-Application
Zero	I-Application
,	O
Langrisser	O
Mobile	O
,	O
Utawarerumono	B-Application
:	I-Application
Zan	I-Application
,	O
Valkyrie	B-Application
Anatomia	I-Application
,	O
and	O
a	O
few	O
Japanese	O
mobile	O
games	O
.	O
</s>
<s>
Characters	O
from	O
the	O
series	O
were	O
also	O
featured	O
in	O
a	O
2019	O
collaboration	O
event	O
with	O
VREX	O
,	O
a	O
virtual	B-Application
reality	I-Application
game	I-Application
arcade	O
and	O
café	O
in	O
Japan	O
.	O
</s>
