Isekai Kaeri no Yuusha ga Gendai Saikyou! Inou Battle-kei Bishoujo o Bishibashi Choukyou Suru Koto ni!Isekai Kaeri no Yuusha ga Gendai Saikyou! Inou Battle-kei Bishoujo o Bishibashi Choukyou Suru Koto ni!ตอนที่4