Im pretty sure I found the sauce!

• SauceNao SourceURL:https://www.pixiv.net/member_illust.php?mode=medium&illust_id=109041193
• Title:な…なんで！？私じゃない？
• PixivId:109041193
• MemberName:Zheng
• MemberId:277602
• Similarity:95.47

Found On Trace.Moe with a similarity of 0.84: - Title English:In/Spectre Mini

• Title Romaji:Kyokou Suiri Mini Anime
• Title Native:In/Spectre Mini
• anilist Id:113828