Sometimes considered a subset or variant of Weeaboo however the Dassalo's interest in Japan is largely focused on the video-games they produce. It is also contentious because despite some superficially shared traits, the weeb is often the result of autism, whereas the Dassalo is generally just immature mentally.
The immaturity is also expressed in the Dassalo's voice, which fails to break well into adulthood. This is in stark contrast to their physiology, which often shows signs of accelerated aging. Despite the Benjamin Button-esque image this description conjures, in real life the Dassalo is quite cute and attractive, and shouldn't be so hard on himself.
That Dassalo's taking another trip to Japan? Big surprise there...