バレンタイン黒森峰絵です。（逸見エリカがあまりにもチョコ作りに真剣すぎるため、試食で口周りにチョコがついて食いしん坊さんみたいになってますよと周りが言えずにいる様子）

It's a Kuromorimine valentine picture. (It looks like Itsumi Erika is too serious about making chocolate, and those around can't tell her she looks like a glutton with chocolate around the mouth)