The scanlation group is Lumiose Scanlations, which is no longer active or there. The typesetter for them for this chapter was @ilovecrt from Illuminate Scanlations. So quality is ensured.
@Hunter_Sylar there are only official translations for all the missing chapters. They are either sourced from Chuang-Yi Scans or VIZ Scans. Both can't be uploaded here due to rules.