Igipfundikizo cy'Icyayi DouChaSai ni igishushanyo cy'igipfundikizo cyakozwe ku bw'icyayi cyahawe icyubahiro mu marushanwa y'icyayi gakondo yabereye ku Musozi wa Wuyi mu mwaka wa 2018. Agasanduku gafite ingano ya milimetero 160 ku 40 ku 245, kandi gakozwe mu mpapuro zidasanzwe, zirangizwa hakoreshejwe uburyo bwo gucapa amabara yihariye (screen spot colour printing), gushyiraho ibara ry'umuhondo (bronzing) hamwe n'utumenyetso two mu icyuma byimurwa (transfer metal stickers). Inyandiko z'ubuhanzi bw'Igishinwa (Chinese calligraphy) zuzuye hejuru y'agasanduku, zikurikije insobanuro n'imiterere y'amagambo asobanura "amarushanwa y'icyayi." Imirongo ifite ubunini kandi ishushanyijwe hifashishijwe imbaraga, ku buryo inyandiko na yo isomwa nk'igishushanyo cy'ubuhanzi. Mu gasanduku harimo agasanduku gato k'icyayi hamwe n'icyemezo cy'ubwiza (collection certificate).
Izina ry'umushinga : DouChaSai, Izina ryabashushanya : 7654321 Studio, Izina ry'abakiriya : 7654321 Studio.
Igishushanyo cyiza nuwatsindiye igihembo cyumuringa mububatsi, kubaka no guhatanira imiterere. Ugomba rwose kubona ibihembo bya bronze byegukana ibishushanyo mbonera bya portfolio kugirango umenye ibindi byinshi bishya, bishya, byumwimerere kandi bihanga imyubakire, inyubako nuburyo bwo gukora.
