<s>
Originally	O
,	O
it	O
was	O
released	O
exclusively	O
in	O
Japan	O
in	O
a	O
PlayStation	B-Device
2	I-Device
format	O
that	O
could	O
only	O
be	O
played	O
on	O
Japanese	O
systems	O
.	O
</s>
<s>
Hourglass	B-Application
of	I-Application
Summer	I-Application
also	O
has	O
a	O
2	O
episode	O
OVA	O
that	O
was	O
released	O
in	O
Japan	O
.	O
</s>
