<s>
was	O
a	O
Japanese	O
free-to-play	O
otome	B-Application
game	I-Application
,	O
developed	O
as	O
a	O
collaboration	O
between	O
Marvelous	O
Entertainment	O
,	O
Kadokawa	O
,	O
and	O
Idea	O
Factory	O
's	O
Otomate	O
.	O
</s>
<s>
It	O
was	O
released	O
in	O
Japan	O
on	O
May	O
29	O
,	O
2017	O
for	O
Android	B-Application
and	O
iOS	B-Application
devices	O
.	O
</s>
<s>
A	O
Nintendo	B-Application
Switch	I-Application
port	O
of	O
the	O
game	O
was	O
planned	O
but	O
it	O
was	O
cancelled	O
.	O
</s>
<s>
There	O
,	O
she	O
meets	O
the	O
various	O
armies	O
of	O
the	O
Sengoku	O
era	O
,	O
all	O
of	O
whom	O
are	O
members	O
of	O
the	O
Gekka	O
Tribe	O
,	O
mainly	O
supernatural	O
creatures	O
such	O
as	O
vampires	O
,	O
werewolves	O
and	O
oni	B-Application
.	O
</s>
