Another thing that Kyoto Animation released is this visual art.
Furthermore, additional characters for the series was also revealed.

Kouji Tsujitani as Kunio Yaobi of the “Hoshi to Pierrot” (Star and Clown) record shop.

Naoya Nosaka as Tadanao Shiraki, the quiet worker at the “Miyako Udon” shop.
Kyousei Tsukui as Choji Yumoto of the “Usa-Yu” public bath. He also serves as the chair of the neighbourhood association.
Kumiko Watanabe as Fumiko Mitsumura, the cheerful lady who runs the “Just Meat” shop
Hiroshi Yanaka as Nobuhiko Tokiwa, the “Tokiwa-do” toy shopkeeper who loves to play the cup-and-ball toy with kids. He is Midori’s grandfather.
Yoshihisa Kawahara as Tomio Shimzu of the “Shimizu-ya” tofu shop. He has a secret crush on the “Usa-Yu’s” Sayuri.
Ken Narita and Yoko Hikasa as Takashi and Mari Uotani of the “Sashimi” fish shop