Death Guns In Another World - Chapter 1938 - 1721: The Renewal of the World Tree

Calamity descends upon a a tranquil world in the black of night, transforming it into a death game! This a a true apocalypse, but this is not the end of humanity!

- Description from Novelupdates

Our protagonist was a Mexican who died on a flight, when he woke up he found Apollo who reincarnated him as the grandson of Gaius Octavian Turino (Augustus) the first Roman emperor, having a mission in hand to conquer the New World to save the Roman polytheist world and his existence.

Elwin Warbringer, the cherished son of Queen Morgana in the matriarchal realm of Sunhaven, has always been adored by his powerful family. But as the only brother to four fiercely competitive sisters vying for the throne, Elwin yearns for something more than royal favoritism. Reborn into this reversed world after a tragic end in his past life, he dreams of finding a love strong enough to match his ideals.“Why is Octavia, the Hero, panting while she looks at me?”sighing Yes it’s another Gender Role Reversal Story from me. This time the setting is a magical academy. This MC isn’t afraid to try different kind’s of relationships out but is still very much a monogamist.No harem. Yandere. Some smut but mostly plot. No harem!

There’s a legendary Bishoujo Game that has become popular among Japanese gentlemen.