Osu's Ennichi 18th Historically, there are many temples and shrines in the suburbs of Osu, and it is said that visiting them on Ennichi is especially beneficial. In order to familiarize visitors with the temple, various events are held every month at temples and shrines in Osu to coincide with the fair days. Osu Kannon" The 18th of every month is the auspicious day of Kannon Bosatsu (Goddess of Mercy). Antique Market: From 5:00 in the morning to around 4:00 in the evening (hours vary depending on exhibitors), you can find a wide variety of antiques, such as pottery, kimonos, and cute toys. You might find a bargain! Also, at "Fuji Sengen Shrine", Osu-based idol groups OS☆U and OS☆K will be performing "Ichi or Yaka" live from around the evening.