FATHOMLESS FORTRESS Mira teams up with powerful members of the Isuzu Alliance to apprehend Chimera Clausen’s leader, which means heading into a hundred-level dungeon. There, Mira and her companions encounter a mysterious individual battling the Chimera on his own. Is he an enemy, an ally, or something else? Whatever he is, he may have important information to impart to Mira! Ryusen Hirotsugu is a Japanese writer best known for She Professed Herself Pupil of the Wise Man. dicca*suemitsu is a Japanese manga artist and creator best known for Reversible!, Oto x Maho , Shin Seitokai no Ichizon, and the manga adaptation of She Professed Herself Pupil of the Wise Man. fuzichoco is a Japanese artist best known for R.O.D - Rehabilitation; Hachinan tte, Sore wa Nai Deshou!; and the light novel version of She Professed Herself Pupil of the Wise Man.