Yogenme

Mashiro, a versatile young girl with excellent physical reflexes and top-notch shogi skills, encounters a mysterious gas-masked beauty named Hinako in a suspicious-looking workplace within a building-- Turns out that what she's creating is a type of assembly model known as a "Garage kit," which is handcrafted in limited supply by the creator, making it different from the mass-produced ordinary figures.

Mashiro, a versatile girl with excellent athletic skills and a great chess player, meets a beautiful girl in a gas mask, Hinako, who works in a room of a suspicious building. Unlike ordinary mass-produced figures, she was making "garage kits", hand-made assembled models of which only a limited number are produced by individuals!

Story t from Tatsumi Oomori's perspective.

After souls die, corpses still keep their hearts. Both protagonists Katasaki Yuu and Watagiri Shaberu can see those corpses whose human hearts have died. Two lonely and special people encounter each other. They are determined to rescue the people who left their soul's corpses behind and alleviate their soul's pain. This is a moving work that soothes the spiritual wounds!