This song starts at 21m 07s.
[ Song Information ]
Title│Oh! One True Love
Arranged by│피아노박스 PianoBox
Difficulty│★★☆☆☆
Details│Musical Mettaton Music.
[ Music Sheet Information ]
Cover 1P + Comment 1P + Music sheet 2P
Music sheet starts at page 3.
Note when you preview it.