Rules Booklet - Another Day on the Planet

Rules Booklet - Another Day on the Planet is a special supplementary manga booklet originally distributed as an exclusive mail-away item by Chara for readers who purchased volumes one through three of Rules upon their initial publication. The booklet offers a compelling look at characters Hikaru and Yuki following the events depicted in the main series. For readers seeking to understand how this supplemental release fits into the broader narrative, a complete timeline of the Rules series is available within the official Rules synopsis.