est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
This volume is a collection of short stories. The title story "Aka no Sekai" features a boys' summer camp out in the country. The main character, Regulus, is reluctantly attending the summer camp, where he shares a room with a cheerful boy named Milan. Soon after arrival, though, some of the other boys begin acting strange, while claiming they want to see the color red. Will Regulus and Milan be able to figure out what is happening before it is too late? (Source: MangaHelpers)
Source: AniList
External databases: MADB · AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections
Volumes
KCx First edition
1vols · 2011-07
More by びっけ See all →
Gokusai no Ie
極彩の家
びっけ · 14vols
FantasyAge GapSlice of Life
Eila to Totsu Kuni no Ou
エイラと外つ国の王
2019 · びっけ · 10vols
Gender BenderDramaVampiresRomanceHistorical
Oukoku no Ko
王国の子
びっけ · 9vols
Gender BenderDramaMysteryCrossdressingRomance
Ame Nochi Hare
あめのちはれ
びっけ · 8vols
Gender BenderFantasySchoolRomanceSlice of Life
Shinkuu Yuusetsu
真空融接
びっけ · 4vols
Boys' LoveDramaFantasySchool
Yagi-kun to Mei-san
ヤギくんとメイさん
びっけ · 3vols
ComedySlice of Life
More in this genre See all →
Sengoku Strays
戦國ストレイズ
七海慎吾 · 15vols · Shōnen
ActionAdventureTime TravelDramaFantasy
5-Ai no Rule
5愛のルール
一条ゆかり · 1vols · Shōjo
DramaRomance
Arabian de Naito!?
アラビアンでないと!?
七瀬かい · 1vols
Boys' LoveDrama
Angel Mimic
天使の擬態
七瀬かい · 1vols
DramaPsychologicalRomanceTeachers
Gaki no Koro kara
ガキの頃から
一色まこと · 1vols · Seinen
DramaSlice of Life
Angel/Dust
エンジェル/ダスト
七瀬葵 · 1vols
ActionDramaFantasy