"Smile Smile" is Itsuki Aoi's only song in Tokyo Mirage Sessions ♯FE, and serves as the credit's theme. It's sung by Itsuki's voice actor, Kimura Ryouhei.
Kyō deae ta
Takusan no egao tachi ni
Sayonara o iu no wa
Sukoshi sabishiku naru kara
Kono shunkan
Hitotsu ni nare ta kimochi o
Zutto atatame te
Sakara mono ni shiyo wo
Sō sa
Donnani donnani make sō demo
Mata chikara ni naru yo
MOTTO Smile Smile
Kao age te waratte mise te
Kitto kokoro karuku naru
Mata arukidaseru
Itsuka mata
Koko de aeru
Sono toki made
MOTTO kagayakeru yō ni
Ima mune ni chikatte
mada shiranai
atarashii jibun jishin
sagashi te i ta kedo
hitori ja mitsukerare nakatta
ima wakatta yo
sorezore chigau minna o
mitomeae ta toki ni
umarekawareru n da to
sō sa
donnani kokoro ga tōku te mo
mata hitotsu ni nareru
soshite Smile Smile
Koe age te
Uta i tsuzuke te
Kitto kokoro odoridasu
Mata tsūjiaeru
Itsuka mata namida nagasu
Toki ga ki tara
Itsumo omoidaseru yō ni
Kono uta o kizamo u
MOTTO Smile Smile
Kao age te
Waratte mise te
Kitto kokoro karuku naru
mata arukidaseru
(show me)
Itsuka mata koko de aeru
Sono toki made
MOTTO kagayakeru yō ni
Ima mune ni chikatte
(show me)
Kono uta o utao e
La~
Trivia[]
The song was featured in Fire Emblem Heroes, in the Tap Battle Event Illusory Dungeon: Wings Carry Me, for Floors 80-100. It is listed as "Smile for Me."