In the summer of 2021, Johan Chang, who lives in Taipei, and Masa Kudo, who lives in Tokyo, began a video correspondence with the rule that reply by quoting sounds or pictures from the images sent by the other. It was during the period of COVID-19 that two filmmakers couldn’t meet in person. Letters, which have been used as a means of communication since ancient times, with the effect of condensing, deepening, and materializing emotions. The letters sent to each other, evoking the senders’ daily life. The work shown in this screening is part of a two-year video correspondence that has been compiled into a circular work with no beginning and no end. Each letter is a complete small world.