A bored Rimuru Tempest accompanies Diablo when he goes to meet with an old friend in the Netherworld. What will happen when he meets an out-of-place human boy who piques his interest? (Tensei Shitara Slime Datta Ken and Mairimashita Iruma-kun crossover)
Rimuru, after successfully repelling Velgrynd, the catastrophic dragon, takes his well-earned break. But, unfortunately, his break gets cut short after Guy had called in for Walpurgis. While preparing for his departure, Rimuru gets attacked when he crosses the teleportation space made by Guy's subordinates. When he...
Warning‼️ This Fanfic will follow the Light novel, ONLY SOME of the scene will be canon. So if you have never read the novel, please be aware of major spoilers along the way. I warned you. Well, this is basically the timeline of the series Tensei Shitara Slime Datta Ken, but with Kiyotaka and Rimuru as the Mc. How wou...