It even includes the entire concept of fall

Shangri-la, killer opening, healthy depiction of Otaku and gamers in general. Well written, it treats the audience like they know things about games instead of explaining things at a beginner level (like every other gaming/isekai anime). The fights are beautifully animated/choreographed, and the concept is pretty unique. Instead of some rando being incredibly OP due to some niche expertise, Sunraku/Hizutome is just really freaking good at games. Also, based on NPC dialog, there’s a deeper mystery to the game and the show takes the proper time to let that unfold instead of info-dumping at the earliest opportunity.