Seven royal families reign over each of the seven kingdoms of Wonder, prospering inside the planet for many years. Ohisama no Megumi (the sun's blessing) is beginning to die, and, if it disappears, all of the...

https://comic.pixiv.net/works/12069

Udagawa Kachiko is a studious no-nonsense high-school girl. One day, she found an entrance to a fantastic world called Fusuma Land.

Akane and Kaede are twins who look identical. Their parents force them to "become more like a girl and more like a boy..." so they come up with a "challenge"...!? https://bookwalker.jp/series/332011/?srsltid...

Official Translations: S.Chinese https://www.cmoa.jp/title/208245/

Part of the Comic Roman Mystery series. Volumes in series:1: Kokui no Ever2: Mizu no Naka no Akai Ie3:4: Hana no You na Lilibet5: Kokui no Hanayome6: Rita! Dare o Matsu7: Yoru no Triangle8: Akuryou ga...