Melvia Siebel & Cecilia Helmold / メルビア・ジベル＆ツェツィーリア・ヘルモルト (Atelier Totori / トトリのアトリエ)

https://civitai.com/models/1619258/melvia-siebel-and-cecilia-helmold-atelier-totori

2-pack of the supporting characters Melvia and Cecilia from Atelier Totori. Since Illustrious already knows Totori you get her for free.