release
異世界帰りの勇者先生の無双譚 1 〜教え子たちが化物や宇宙人や謎の組織と戦ってる件〜
Overlap publisher, Overlap Bunko imprint
Isekai Gaeri no Yuusha Sensei no Musoutan 1 ~Oshiegotachi ga Bakemono ya Uchuujin ya Nazo no Soshiki to Tatakatteru Ken~