Koi wa Shimekiri no Ato de: Shotenin. Tokidoki, Mystery Sakka

The bookstore clerk Tsumugi Kurokawa has a secret that she can't tell anyone. The only one who knows about it is Kyosuke Sakuragi, an editor at a literary publishing company. Whenever Sakuragi shows up at her bookstore, Tsumugi can't help but feel a little thrill... The start of a cute, doting, secret love story! (Source: Cheese!, translated)