Part 1

https://www.pixiv.net/member_illust.php?mode=medium&illust_id=95162800

Authors: yt (wai-tei), ワイテイ

From: touhou

Characters: chen, yakumo ran, yakumo yukari, houraisan kaguya, yagokoro eirin, inaba tewi, reisen udongein inaba, ex-keine, fujiwara no mokou, kamishirasawa keine, seiran, ringo, wakasagihime, sekibanki, toyosatomimi no miko, mononobe no futo, soga no tojiko, kaku seiga, miyako yoshika