MTL - Full-time Master: Buy Excellent Era at the Start - Chapter 336 blue rain

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

After his tragic life ended, Aleron expected to reincarnate or transmigrate, but instead, he was transported with his body and summoned as a hero...only to enter a new hell as he had trash stats and couldn't activate his Divine Blessing, prompting the King to extract his boon.He was tortured and onward to being buried alive with his soul ravaged after they removed his Divine Blessing. But all was not lost as Aleron found he had the Ultimate Gacha System at the death's door and initiated his first summon in the Lords of Arcane banner.[Congratulations! You have summoned Darzax the Graveborn, the Sorcerer of Death and Necromancy.]

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!