Artbook by the Mangaka of Vampire Princess Miyu and Kung-Fu Girl Juline.
The protagonist, Goto Benio, is the son of the president of his family's delivery service, Magokorobin. He has no complaints about his job as a courier, and in fact hopes to take over the business in the future. However, even though he loves his job as a courier, he is still a high school student. He struggles daily with the demanding work, his sister Hiko's loving reign of terror, and his declining attendance. Each episode is basically a complete story, and because it's set in a delivery service, there are a lot of supporting characters. Although it's primarily a comedy, the members of Benio and Magokorobin, as well as their friends, are all men and older sisters. There are also some tear-jerking stories that touch on the importance of social trust and human connections.
Pairing: Kageyama x Hinata Both Kageyama and Hinata are in love with each other but none of them know about it. As for the Hinata tries to seduce him at all costs. Will Kageyama read Hinata’s advances and correspond the feelings? ——— Reprinted in volume 3 of [Zeroshiki Haikyuu Sairokushuu](https://www.mangaupdates.com/series/r74tldu/haikyu-dj-zeroshiki-haikyuu-sairokushuu)