Arisu, a Japanese student, finds themselves in an unfortunate situation when they mistakenly board the wrong bus and end up in a Wonderland that closely resembles the twisted tale of Lewis Carroll. The environment they find themselves in is characterized by frequent metamorphoses, making it perilous to reveal oneself as "Arisu" (the Japanese version of Alice) or to recklessly drop soap. Predictably, Arisu gradually undergoes changes that leave them feeling disheartened.