"Jiko Ken'o" first appeared in Hatsune Miku: Project DIVA in the "Motto Okawari, Rin, Len, Luka" DLC pack. Its PV was created with the game's Edit Mode feature while its visuals are similar to those from Hatsune Miku: Project DIVA Dreamy Theater. The song can also be playable by installing the song and edit data from the DLC menu, however, its visuals will be downgraded to be consistent with the rest of the game. The song was also featured in Hatsune Miku: Project DIVA Dreamy Theater and Dreamy Theater 2nd with high-definition visuals consistent with the both games.
tatta hitori ni kirawarechau no kowagatte
ittai dore kurai yowaku nacchattan darou?
tsuyoku ririshiku uruwashiku sonna fuuni misetetemo
kimi ga inakunaru soreppocchide kowarete shimaisou
kanjou ga matomaranai asettatte doushiyoumonai
sonna koto wakatteru keredo
mou sukoshi no tokoro de honne ga hakidasenai
reisei ja irarenai shinsou ga nariyamanai
kimi no kokoro ga shiritai
tomadoi no hazama de yoru ga owatte shimaisou
gensou nante iranai makkana uso nozondenai
sonna mono imi ga nai keredo
sore demo yorokon jau konna atashi yurusenai
dounattatte kamawanai unmei nante kankeinai
sou ieru yuuki nante nai
yurushite kureru nara ima kuchibiru kasanete nemuritai
