High School Prodigies Have It Easy Even in Another World!, Vol. 3 (manga) — Riku Misora

Love Huntress Ringo
It's a once-in-a-lifetime opportunity to win Tsukasa's heart when Ringo finally goes on a date with him. Can the genius scientist overcome her shyness to tell her longtime crush how she feels, though? Meanwhile, the war against Oslo el Gustav finally comes to a close, but Shinobu is still suspicious of Gustav's supposed demise. As the Prodigies' new nation grows, so too does the chance of retaliation from the wicked Freyjagard Empire. Are the high schoolers from Earth truly ready for such a powerful opponent?