Wrong Frequency

In order to save his brain-dead younger brother, his elder brother participated in brain research and completed tasks with his younger brother in various artificially constructed brain worlds. "Brother! Brother! Look! I summoned the fire dragon!" "Wow! Brother! A large single-family villa! Private jet! Private yacht! Our family is so rich!" "Brother, are our statuses getting lower and lower?" "Brother, it looks dangerous. How about we give up on this deal?" "Cruel! Really cruel! As expected of my brother!"