Fate: Dimensional Forum

He had transmigrated into the Nasuverse, becoming a magus. Nathan had originally thought his life would be spent fighting in the Holy Grail War, maybe saving humanity along the way… that sort of thing. But then he had obtained a Dimensional Forum that connected different worlds. Kocho Shinobu: “Excuse me, is it really possible for humans and Demons to coexist peacefully?” Nathan: “Immortal Demons make excellent experimental materials. They’re the best candidates for working in mines or in nuclear radiation zones. Isn’t that harmonious enough?” Haibara Ai: “I work in an evil organization. They killed my sister. How can I get revenge?” Nathan: “Take that drug that turns people into children. I’ll annihilate all of them right away.”…Members from different worlds kept appearing in the forum. While helping them solve their problems, Nathan also picked up some local specialties along the way—and earned himself a few points as well. — Description from novelcodex.orgFull novel: Fate: Dimensional Forum — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠