Daigo Murasaki Boeken

THE FUTURE WAITS FOR NO ONE​The cyberpunk metropolis Shinjuku—a massive city-state bedecked with neon signs, towering skyscrapers, and the latest cutting-edge technology. It is here, in year 2099 of the Fused Era, where the legendary Demon Lord Veltol has his second coming five centuries in the making. But this landscape is nothing like the one he conquered all those years ago, for the fusion of magic and engineering has elevated civilization to dazzling, unprecedented heights. Veltol may have been reduced to a historical footnote, but make no mistake…this brave new world will be his for the taking!

Akihabara. This future city is host to two rival factions: Electric Town, which continues to prioritize technological innovation, and Magic Town, which respects the traditions of old. It is here that Demon Lord Veltol makes his entrance...to a prestigious academy as a foreign-exchange student! The stage is set for the future Demon Lord's second act!

Rinne the dragon princess is blown out of the sky en route to her execution and winds up in front of young boy, Ryuunosuke, who then has to marry Rinne because if he fails to keep her in check, the entire human race might go extinct.