A. Answer

"otona ni nareba motto tsuyoku nareru" tte
omotteta shoujo no koro...

hayaku otona ni naritakatta
nandemo dekiru you ni naru kara
"kodomo wa shicha ikenai koto" ga ookute...
na noni ima dewa sunao na jiyuu kimama de subete ni
muchuu datta "ano koro ni modoritai" nante...

shinjiru tsuyosa moteba
ayafuya datta mono mo meikaku ni natteku
jibun no mirai wa mou koko ni aru kara
watashi ni wa mieteru kara ippo chikadzukeru

mukashi MAMA no keshoudougu tsukatte okorareteta kke...
otona ni wa naritakunai kodomo demo irarenai
hazama de maigo no you ni ittari kitai no
kokoro no nakigoe ni kidzuite wa ita n' dakedo... naze?

datte tsuyogareba tsuyoku natta you na sonna ki ga shita
amaeteru jikan ni yowaku natte ikisou de
yowasa kakusu tsuyosa wa iranai

mahou tsukai no you ni
"kou naritai tte jibun" souzou shite
sono doori ni ima no watashi ni mahou kakete
"kinou made no jibun" kara no PUREZENTO

sou omoiegaite
risou to genjitsu chigatta toshitemo
tsuyoku negau koto nara subete wa hajimaru
kokoro kara kawareba ashita ga kawaru kara