An Alternate Costume for Girls' Frontline's HK416 (Girls' Frontline), appearing first on the cover of the Japanese-exclusive Dolls' Frontline Official Skin Collection artbook from 2020. Illustrated by Imoko (Imonatsuki), it is a concept design for what HK416's Wedding Dress skin might look like. It never received an official release as a skin, but it did receive a release as a figurine, which granted the dress its name (以月伝心).
HK416 wouldn't get an official wedding dress skin until 2024, in the form of Transparent Blue.