After the events of Konosuba which had Saito Kazuma as the main Heroin. Aqua has returned to her statice of Goddess, Megumin became the greatest arc wizard and Darkness has become the boss of her father's empire, after they defeated the demon king. Thousands of years later the demon kings son was born and started to terrorize that world. That world fell into crisis yet again. Thousands of young people who died in Japan was teleported to that world after dying, but non if them are close to defeating the new demon king. This story follows Kanike Hatake who was killed in an unpleasant manner and teleported to the same alternate world. He has but one goal and that's to defeat the demon Kings son But, will he or will his companions move him into the opposite direction. In a video game like world will his gamer knowledge be enough or will he need guts, courage and what not?