Ability to move between Earth and Otherworld. like(I Have a Mansion in the Post-apocalyptic World) Mostly chill novel. Thanks In Advance.
NoGift Original novel at WebNovel. Mc came from interstellar earth, after she detonated her own bomb she transmigrated on a body of a girl who was forced to disguise as a guy for some inheritance. Mc doesn't have a gift and so the title says it all. She used her own technology to dominate the entire four continent.
A bit pushing it but me her and the ballistic weaponry [antique]. A guy wakes up in the future where everyone uses laxer based weapons and he mounts a railgun to his ship instead.