Baka to Test to Shoukanjuu‎ - Volume 1, The Fifth Question

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

In a parallel world filled with pet beasts, people tame, train, evolve, and trade beasts.

Wang Yang never stopped pursuing his dream of becoming a director and making movies that could amaze the world. However, the fate seemed to play a malicious joke on him. He got wrongly accused and expelled from USC. Fortunately, when God closed a door to Wang Yang, he opened a window for him. After a baby stroller hit him on the street, he began to be able to watch the movies from the future in his head!Since then, the year of 1988 was destined to be an extraordinary year. Besides the miracle written by “Titanic”, one of the most legendary directors in the 21st century was rising quietly…

Betrayed and left for dead, Richard Blackwood—formerly known as the world renowned hero Astralis—awakens a decade later to find the world has moved on, and an imposter now wears his mantle. Disguised as a rookie in the Mage Guild, he quietly hunts for answers.'If my little sister is levelled above me, then what about everyone else? How much stronger have the bastards who betrayed me grown while I was dead?'Richard must grow stronger once again, and rise much higher than the S-Rank.'What the fuck? I almost die, and I get a power up?'Not harem.