<s>
The	O
series	O
has	O
a	O
motif	O
of	O
Celtic	O
mythology	O
and	O
consists	O
of	O
three	O
games	O
:	O
Tenshi	B-Application
no	I-Application
Uta	I-Application
(	O
1991	O
)	O
,	O
Tenshi	B-Application
no	I-Application
Uta	I-Application
II	O
:	O
Datenshi	O
no	O
Sentaku	O
(	O
1993	O
)	O
,	O
and	O
Tenshi	B-Application
no	I-Application
Uta	I-Application
:	I-Application
Shiroki	I-Application
Tsubasa	I-Application
no	I-Application
Inori	I-Application
(	O
1994	O
)	O
.	O
</s>
<s>
was	O
released	O
on	O
25	O
October	O
1991	O
as	O
one	O
of	O
the	O
launch	O
titles	O
for	O
the	O
PC-Engine	B-General_Concept
Super	O
CD-ROM²	O
.	O
</s>
<s>
was	O
published	O
for	O
the	O
Super	B-Application
Famicom	I-Application
on	O
July	O
29	O
,	O
1994	O
.	O
</s>
<s>
It	O
is	O
the	O
third	O
episode	O
in	O
the	O
series	O
,	O
but	O
is	O
not	O
a	O
true	O
sequel	O
to	O
the	O
first	O
and	O
second	O
episodes	O
previously	O
released	O
on	O
the	O
PC	B-General_Concept
Engine	I-General_Concept
.	O
</s>
