The only reason he is the strongest is... effort!! Ichitaro, a high school boy, has a personality that causes him to get completely absorbed in a single thing. One day, his entire class is transported to another world as heroes. The hero rank assigned to him at his destination is the worst. Deemed a useless existence, Ichitaro is locked away in a prison where time has stopped. What he did there... was training for 100 million years. By the time he left the prison, he had mastered each and every swordsmanship style, becoming the strongest hero!!

Anthology of doujinshi from different artists. Each volume centres around a different theme. **Vol 1. Nekoma Nikki** - Cover illustrator: MOGU Emu - Pin-up illustrator: Man - Doujin artists: ASHITA Hashiru, USA Umeko, Nsawa, KONNO Tsugumi, Sekimori, SOUBA Emi, TSUBAKIYA Iori, NECK Satou, HATORI Yuzuca, Hanichiki, MA2, まみや, Mamedama, Marie, Yamada-san, YUUKI Kaori, YOSHIDA Yuuko, Yoneko, Raurii **Vol 2. Chibikyuu!** - Cover illustrator: じる - Postcard illustrator: Kuromame - Doujin artists: Eri, OOKI Bonta, Kazu, KARIYA Akira, Kitayama, KEVIN, KONNO Tsugumi, SAGAMI Kei, じる, SOUTOME Emu, Chiba, Hanichiki, HARUGANO Kairu, Pizza Pan, Hitoshi, Buta Rosu, Manako, Mikanmochi, Menon, YUUKI Kaori, Yoneko, RYUUKA Satoru, Ririku **Vol 3. OiKage 365 Nichi!** - Cover illustrator: Meeji - Pin-up illustrator: Aikawa - Doujin artists: AOBA Shiro, Amy, Kako, KUROSAKI Ineko, Kuromame, SASAKI Kisara, Shika, Shousa, TSUBAKIYA Iori, HACHIDA Killy, Hitoshi, Hesokugi, Macaroni, MACHISHITA Fukou, Mekako, YANAGI Yuuko, Yoneko, Lizbeth, Ruharu, y - Scanlated stories: 　• *[color=blue]Kyou wa nan no hi[/color]* / What day is it today? (今日は何の日) by YANAGI Yuuko **Vol 4. Tsukky Catalogue** - Cover illustrator: Mitsuya - Pin-up illustrator: Kokomi - Doujin artists: Ao, Uki, KASHINOGI Nanoka, Kitayama, ko, Sakae, Jun, TOUJOU Nyankichi, NAKAMURA Ninako, Norio, Hamaru, Haru, Yuuko, Yuniko, Yoshiya, Yoneko **Vol 5. BokuAka Jiten** - Cover illustrator: Deme - Pin-up illustrator: KEVIN - Doujin artists: Umeda Uu, Urohitsuji, 圻, KAKEI Yamato, Kiyoi, Saneyoshi, JIRO, Deme, Futokoroi, Nijiko, Noa, Hachi, FUJIMA Nigou, Hobi, 陽, Lowrise M Note: [color=blue]blue[/color] = scanlated