est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
This ambitious work from 1964 was the first of its kind to incorporate the idea of "time paradox" into a shoujo manga. Borrowing the motif from the folklore of the "Yuki-Onna" (Snow Woman), it weaves an immortal love story that transcends time and space in this visionary sci-fi shoujo manga! (Source: Shogakukan, translated)
Source: AniList
External databases: MADB · AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections