When Ru Ning, a young genius studying toxicology for all the wrong reasons, 'dies' in an accident after an experiment with his newest creation had gone wrong, he finds himself in another world where monsters and dungeons existed with the same body but with an addition — a system.

How will he survive the cruelty of this world, encounter mythical creatures, and create a name for himself — all while chasing his ambition of creating the world's deadliest poison?