Still shaking their heads about the antisocial John, Bob and Hope returned to their farm which consisted of nothing more than some fields, a stable where the oxen and cart could be parked (Their father's motto was: "Ride a horse, have remorse. If a ox cart you are driveing, slow but safe you are arriving."), and a farming shed, no house anywhere to be seen. A farm house was not necessary though, for Bob and Hope were residents of Japan. They entered the shed and returned to Earth with a magic cicle for interdimensional travel which could only be used by members of their family, the de Spair family.
Thus Bob and Hope de Spair exited the magic circle on the other side in a closet full of Bob's otaku goods, giving the word closet otaku a whole new meaning. The otaku blood ran deep in the de Spair family, had their parents, both genius magicians, explicitly come to Japan after getting hooked on some manga left behind by one of the many heroes or anti-heroes summoned from Japan. Bob, Hope, and their long lost brother were already born in Japan, growing up in two worlds at the same time.
After returning home, Hope left for her part time job in a maid café, taking along missing posters featuring her lost pet, Roo-chan the roomba. Bob sat down in the living room to watch a recording of his favorite anime he hadn't watched last night since he was out drinking with some former military colleagues in isekai. But just as he got to the good part he heard the doorbell ring...