A certain female researcher has invented a series of living weapons known as Extras. Despite their usefulness, ordinary humans despise them and wish to eradicate them. The story follows two men: Alex, the aforementioned researcher's son and leader of a group known as Pandora, and Leo, an Extra.

Manabu Nakagawa is a 29-year-old man who has been a NEET for years. With his father's help, he finally gets a job in the education field. One day, Manabu Nakagawa visits a red light district in Sapporo. While in an intimate act with a prostitute, he suffers a brain hemorrhage. Amazingly, he survives, but he struggles to keep the location where he suffered the brain hemorrhage a secret. Original Web Manga

A collection of romantic oneshots published with edition 02/2020 of Flowers as *separate-volume supplement* (別冊ふろく). Rereleased on June 12th 2020 as digital-only compiled volume. 1) *Ano Hoshizukiyo (SAITOU Chiho)* 2) *Sakura no Negai Goto (NAKAGAWA Kaoru)* 3) *Ren'ai Complex (NINOMIYA Yuuko)* 4) *Na no Hanabatake de Tsukamaete (SHIRAKABE Takumi)* 5) *Kimi no Iru Heya (MIKUMO Akari)* In compiled volume, there are some chapters that released before in other “separate-volume supplement”s as well: -*Little More: Chiisako no Niwa Bangai-hen (KODAMA Yuki)* -*Spirits and Fresh (OOGAMI Takako)* -*[In the Pocket](https://www.mangaupdates.com/series.html?id=169792) (TANI Kazuno)* **Scanlated**