Kammala jumla mai zuwa: A karo na farko tun lokacin da ya fara gasar kasa da kasa a gasar cin kofin duniya ta 2013, Shirai bai cancanci shiga kungiyar 'yan wasan Japan ta AG ba; don haka, rashin iya shiga gasar zakarun duniya na wasan motsa jiki na 2019 a Stuttgart, Jamus, a ranar 4 ga Oktoba, 2019. Wasannin Shirai sun yi jinkiri ga mafi yawan kakar wasan 2019 ta hanyar rauni mai taurin kai da rauni na hagu na hagu, wanda ya haifar da shi ba zai iya yin gasa mafi kyau ba a lokacin gasar zakarun kasar Japan ta shekarar 2019 cewa sakamakon da aka samu a can da kuma a gasar NHK Trophy ta shekarar 2019 ya tabbatar da cancantar dan wasan motsa jiki don shiga tawagar kasar Japan a
Gidan wanka na 2019. Shirai ta mafi kyau damar da aka samun daya daga biyu spots samuwa a kan gwani na'urar mutane, musamman da sa hannu events a kan FX da VT. Koyaya, Shirai kawai ya sami matsayi na 3 a FX, kuma na 5 a VT wanda ya sa bai cancanci shiga WC ba, kuma bai iya kare lambobin duniya daga 2018 ba. Hakanan, kamar yadda Shirai ba shine kawai babban mai halarta ba (Kōhei Uchimura ba ya nan saboda raunin da ya faru), maza na Japan sun aika da tawagar da ba ta da ƙwarewa sosai zuwa gasar cin kofin duniya ta 2019 inda gasar maza ta mamaye wasu ƙasashe. Shirai ya yi aiki tuƙuru don dawowa cikin yanayin gasa na tsawon lokaci na ƙoƙarin murmurewa daga raunin da ya faru, sannan ya yi tsatsa a kowane taron.