Rin-chan from "Hima na no de Hajimete Mimasu" (Vol.1Ch2, Pg17) has the same t-shirt as Shingo: Kuroneko Kareshi no Asobikata "(Vol1Ch1, Pg24) (▰˘◡˘▰)
Th manager is wearing it too when he and Kagami get back to Japan from the shoot in the desert
it's true :) there is more, Ryouta also has a panda shirt, Shingo's friend too (▰˘◡˘▰)
Rin-chan from "Hima na no de Hajimete Mimasu" (Vol.1Ch2, Pg17) has the same t-shirt
as Shingo: Kuroneko Kareshi no Asobikata "(Vol1Ch1, Pg24) (▰˘◡˘▰)