The Gentleman at the End - Chapter 512 - 510 Opening Ceremony

In Academy City, magic and science coexist in an unwavering power struggle. Toma Kamijo, an academically-challenged student in Academy City, wields the power of the Imagine Breaker in his right hand, which allows him to completely negate all supernatural powers – as well as his own luck. When he happens upon a mysterious nun named Index, whose mind has been implanted with the Index Librorum Prohibitorum – 103,000 ancient texts banned by the Church – Toma’s luck is about to be pushed to its limits when he finds himself in the middle of a war he never expected!

“Before the towers fell, before everything was consumed by darkness...”Leo Astralis whispered to himself while traversing through the rubble of the ancient structure.His body bore the scars of survival, bite marks that throbbed against the coarse, blood-stiffened fabric of his clothing.“..I wonder what the world was like.”After humanity failed to complete the Tower almost 700 years ago in time, it exploded, spreading monsters all over the word.Even the system, which blessed humans with power, had abandoned them. Or did it?[Run]A singular message urged Leo to escape, yet it was short lived as was he was caught like an animal in a trap.And just like an animal he lashed out until the very end, taking one of the captors to the grave with him.But as darkness closed in, the system spoke again.[One time Regression activated][Congratulations. You've activated the Heart of the System]

No one is optimistic about the marriage between the most respectable man in Yun Cheng and the most disfavored daughter of the Mu family.