Isekaigaeri no Kensei wa, Jibun no Jitsuryoku ni Ki ga Tsukanai: SSS-Rank no Kakushi Quest wo Ukete Kaettekitara Level 1 no F-kyuu Tansakusha ni Natta kedo, Isekai de Kitaeageta Kenjutsu ga Tsuyosugite Oujo ya S-kyuu Eiyuu-tachi ga Ore wo Houttekuremasen