Eufonius discography
Singles

Year
Song
Peak Oricon chart positions
Album
2004
"Guruguru"
—
Eufonius+
2004
"Habataku Mirai"
80
Subarashiki Sekai
2005
"Chiisana Uta"
—
Metro Chrome
2005
"Idea"
94
Metafysik
2006
"Koisuru Kokoro"
51
Metafysik
2007
"Apocrypha"
46
Metafysik
2007
"Mag Mell: Frequency⇒e Ver."
—
Non-album single
2008
"Reflectier"
24
Ao no Scape
2009
"Anemoi"
51
Ao no Scape
2009
"Kono Koe ga Todoitara"
79
Aletheia
2009
"Phosphorus"
27
Ao no Scape
2009
"Divinity"
95
Aletheia
2009
"Gleaming Sky"
—
Kalyteryz
2010
"Haruka na Hibi"
71
Phonon
2010
"Hiyoku no Hane"
16
Phonon
2011
"Literal"
—
Non-album single
2012
"Prism Sign"
53
Kioku Seizu
2012
"Paradigm"
23
Kalyteryz
2013
"S/N"
—
Non-album single
2014
"Refionius"
—
Non-album single
2014
"Sati"
—
Non-album single
2017
"Kokoro ni Tsubomi"
68
-
"—" denotes releases that did not chart.
"—" denotes releases that did not chart.
"—" denotes releases that did not chart.
"—" denotes releases that did not chart.

Question: When was the Subarashiki Sekai album released and what is the second single from it?
Answer: Eufonius made their second single "Habataku Mirai" in 2004, which appeared in their album Subarashiki Sekai.