Class Shoukan ni Makikomerareta Kyoushi, Hazure Skill de Kikai Shoujo wo Shuuri Suru

When their entire classroom is abruptly pulled into another world, teacher Aizawa Seiji draws what everyone considers the worst possible lot: the skill [Repair], dismissed from the start as an outright failure. Branded a burden by those around him, the once-respected educator finds himself cast aside and looked down upon, left to wonder what place he has in a world where his ability seems utterly worthless. Everything changes deep within ancient ruins, where Aizawa's mocked skill finally stirs to life—and awakens something extraordinary. A dormant android girl rises, unleashing overwhelming power as she cuts down a rampaging Minotaur without hesitation. The ability everyone derided as useless has just revealed a potential far beyond anyone's expectations. Hoping the ruins hold an escape route, Aizawa and his newly awakened companion attempt to use a teleportation device—only to be flung onto completely unknown ground instead. Stranded far from familiar territory with no clear way back, Aizawa sets out to journey across the vast otherworld, accompanied by the android girl Brynhildr, whose fate is now bound to his own.