Clearing an Isekai with the Zero-Believers Goddess

The weakest by a mile among the otherworldlers of class 1-A, Takatsuki Makoto. The Heroes and Sages who had cheat skills in his class had went off, and the base set lifespan is 10 years? The Great Demon Lord is going to revive soon? I am a Mage Apprentice? Isn’t the balance way too bad? This damn Isekai is a tr*sh game! «Want to be my believer?», the Goddess that told me this has zero believers! Aah, this is bad…I don’t think I can clear this. The Goddess with zero believers is an incredible beauty, and she is telling me she is imprisoned somewhere and is waiting to be saved. My last and hardest mission is to save the Goddess. Clearing this Isekai that only has adversities, the story of the weakest mage.