How do they maintain those devices? The machines that the protagonist summons to use? Not to mention the safety aspects of standing near, using, and cleaning those things—those Earthlings are already familiar with that. Without the mc in future? Also I guess the price will change after many yeah...
It’s a common name, like Max, John, Tom,…. Also ken mean sword
In Japanese, "Kenta" (ケンタ) is often a name given to boys and means "healthy, strong, thick, big." Ken also mean sword. Like kendo, Japanese sword art
Nah
it’s realistic because Because scientists are often so preoccupied with their inner thoughts, they don't really pay attention to their outward appearance until someone or a situation triggers it.