弱虫モンブラン (Yowamushi Montblanc)

Background
DECO*27's first work using GUMI. It only took four days for this song to reach the Hall of Fame, and two months for it to reach one million views.

On April 20, 2010, the Coward Montblanc music videos could be purchased for ¥400 in the iTunes store, while the song itself could be purchased for ¥150.

A common interpretation of the song is of a girl, too cowardly to speak about her feelings, which makes a comparison to a mont blanc. Many suspect that this song is connected to DECO*27's other hit "Mozaik Role", as GUMI appears in her uniform. The songs also both share the same composer, lyricist, illustrator, and singer.

Sheet music arrangements of this song have appeared in the VOCALOID Best Selection series and in Piano Solo VOCALOID - Vocaloid Super Selection as well.