Tensei Dai Majo no Isekai Kurashi - Kodai Roman-Fuu Kokka de Hajimeru Mahou Kenkyuu

Synopsis:

"I wish to live out my dreams as a magician!" With little more than her willpower, Zenith, a young girl reborn in Jupiter, an old Roman-style nation, travels to the capital to pursue her education. She fills the classroom with water magic. Her bizarre behavior never ends; she even passes out after using herself as a test subject and exhales hot air from her buttocks in an experiment. She uses ice magic to sell shaved ice to raise money for her studies, much to the disbelief of others around her, and by chance, it turns into a huge hit. "Amazing! Once more, I have made the discovery of the century! Occasionally a disaster, occasionally a triumph (? ), and occasionally a moment of pure laughter! A magical revolution is sparked by a research-loving teenager in this comic fantasy set in a Roman setting!