Ayano's Happiness Theory (アヤノの幸福理論)

Omoidashiteita no wa mata, kazoku no koto
"Ayano wa onee-chan dakara minna no koto, yoroshiku ne"

Akarenga no kabe chiisa na ie no naka de
Hisohiso hanasou himitsu no sakusen mitai ni
Tsurete korareta san-nin no makka na me ni wa
Otona ni kakushiteita kako ga aru

Obieta kao de "Boku wa bakemono dakara"
Watashi wa tsugeru "Sonna koto wa nai yo" tte
"Makka na iro wa shujinkou no iro dakara, obiete inakute mo, iin da yo"

Omoshiroi koto nayande wa kyou mo onee-chan butte
"Hora, miteite" Akai mufuraa makitsuketa
"Himitsu soshiki mitai!"

Akane-iro, somete, hajimeyou chiisa na "hiiroo no furi" dakedo
"Sukoshi demo, mata waraetara" tte kyou mo kazoku de iyou

"Shiawase" o negaou, saki ni aru mirai ga dore dake kanashikute mo
"Kono koto wa himitsu da yo" Tanoshikute hi ga shizunda

Harukaze meguri otona ni natta sekai wa
Rifujin ni magaru dareka no inbou mitai ni
Fukurande kieta ai suru hito no namida wa
Daremo kidzukenakute, kuroku naru

Kuruidashiteita kidzuitara mou
Dare ni mo ienakute
"Iya da, iya da yo. Kowareru no wa"
Shiawase no owaru sekai ga kuru

"Akane-iro, onegai. Kore ijou, dareka no mirai o kowasanaide"
Nakinagara mata, kangaeru egao ni kakushita mama

"Aka me iro, sore ga watashi nara dareka no mirai o sukueru kana"
Bukiyou de, nasakenai hitori-bocchi no sakusen da

Watashi ga kieta ano hi no himitsu soshiki wa
Chanto waratte kuraseteiru no kana
Kitto, watashi wa okorarechau naa
Dakedo, chanto "onee-chan" ni nareta kana

Omoidashite miyou ano suki datta kotoba
"Shiawase" tte nandaka fushigi
Ashita no koto, suki ni nareru