<s>
is	O
a	O
point-and-click	O
mystery	O
adventure	O
game	O
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
which	O
makes	O
use	O
of	O
the	O
device	O
's	O
touch	O
screen	O
.	O
</s>
<s>
It	O
is	O
the	O
third	O
title	O
in	O
the	O
Touch	B-Application
Detective	I-Application
(	O
Osawari	O
Tantei	O
:	O
Ozawa	O
Rina	O
)	O
series	O
,	O
after	O
Touch	B-Application
Detective	I-Application
and	O
Touch	B-Application
Detective	I-Application
2	I-Application
½	I-Application
.	O
</s>
<s>
It	O
was	O
released	O
for	O
Nintendo	B-Application
Switch	I-Application
in	O
Japan	O
as	O
part	O
of	O
a	O
compilation	O
titled	O
Touch	B-Application
Detective	I-Application
:	O
Rina	O
and	O
the	O
Funghi	O
Case	O
Files	O
on	O
October	O
6	O
,	O
2022	O
.	O
</s>
<s>
As	O
a	O
young	O
girl	O
,	O
she	O
runs	O
a	O
detective	O
agency	O
with	O
the	O
help	O
of	O
her	O
family	O
butler	B-Operating_System
,	O
Cromwell	O
.	O
</s>
<s>
Cromwell	O
Butler	B-Operating_System
for	O
Mackenzie	O
and	O
also	O
a	O
genius	O
inventor	O
.	O
</s>
<s>
The	O
Cornstalker	O
The	O
villain	O
of	O
Touch	B-Application
Detective	I-Application
2	I-Application
½	I-Application
,	O
a	O
master	O
of	O
disguise	O
and	O
thief	O
of	O
antiquities	O
.	O
</s>
<s>
Other	O
characters	O
from	O
previous	O
games	O
,	O
including	O
Beatrice	O
the	O
landlady	O
,	O
the	O
planetarium	O
owner	O
from	O
Touch	B-Application
Detective	I-Application
,	O
and	O
Connor	O
from	O
Touch	B-Application
Detective	I-Application
2	I-Application
½	I-Application
,	O
will	O
also	O
return	O
.	O
</s>
<s>
Mackenzie	O
receives	O
a	O
request	O
letter	O
request	O
supposedly	O
from	O
gnomes	B-Application
,	O
asking	O
her	O
to	O
save	O
their	O
town	O
from	O
being	O
destroyed	O
by	O
a	O
giant	O
“	O
Mecha	O
Funghi	O
”	O
.	O
</s>
<s>
The	O
trail	O
eventually	O
leads	O
to	O
gnomes	B-Application
who	O
are	O
living	O
near	O
the	O
garbage	O
dump	O
in	O
the	O
forest	O
.	O
</s>
<s>
The	O
gnome	B-Application
chief	O
displays	O
a	O
deep	O
prejudice	O
for	O
humans	O
,	O
who	O
explains	O
that	O
gnomes	B-Application
have	O
been	O
taught	O
for	O
generations	O
that	O
humans	O
are	O
horrific	O
creatures	O
.	O
</s>
<s>
After	O
proving	O
herself	O
by	O
finding	O
the	O
keys	O
that	O
allows	O
access	O
to	O
the	O
village	O
,	O
Mackenzie	O
is	O
informed	O
that	O
the	O
gnomes	B-Application
have	O
been	O
taking	O
garbage	O
to	O
use	O
as	O
a	O
barricade	O
whenever	O
Mecha	O
Funghi	O
attacks	O
.	O
</s>
<s>
Mackenzie	O
,	O
Penelope	O
,	O
and	O
Chloe	O
,	O
help	O
build	O
barricade	O
for	O
the	O
gnomes	B-Application
,	O
only	O
to	O
discover	O
that	O
Mecha	O
Funghi	O
is	O
very	O
small	O
and	O
non-threatening	O
by	O
human	O
perspective	O
.	O
</s>
<s>
Having	O
been	O
saved	O
by	O
humans	O
,	O
the	O
gnomes	B-Application
open	O
up	O
to	O
their	O
company	O
,	O
and	O
Mackenzie	O
contemplates	O
on	O
still	O
not	O
knowing	O
what	O
“	O
Mecha	O
Funghi	O
”	O
actually	O
was	O
.	O
</s>
<s>
Meanwhile	O
,	O
Mayor	O
Tom	O
is	O
holding	O
a	O
“	O
car	O
eraser	B-Application
”	O
competition	O
,	O
in	O
which	O
participants	O
compete	O
to	O
push	O
erasers	B-Application
modelled	O
into	O
cars	O
the	O
furthest	O
with	O
a	O
pen	O
.	O
</s>
<s>
Cromwell	O
invents	O
a	O
modified	O
car	O
eraser	B-Application
as	O
his	O
“	O
final	O
invention	O
”	O
.	O
</s>
<s>
After	O
some	O
tips	O
from	O
the	O
prime	O
minister	O
,	O
Cromwell	O
updates	O
the	O
car	O
eraser	B-Application
.	O
</s>
<s>
Mackenzie	O
gives	O
the	O
crystal	O
to	O
the	O
PM	O
for	O
safe	O
keeping	O
,	O
and	O
a	O
newly	O
reinvigorated	O
Cromwell	O
stays	O
as	O
Mackenzie	O
's	O
butler	B-Operating_System
.	O
</s>
