Ii Oshi no Hi — A Day to Celebrate Your Favorite

What Is "Ii Oshi no Hi"?

November 4th is "Ii Oshi no Hi" in Japan, established by Goshinboku Co., Ltd., which runs community-development projects and a guesthouse in Tsukechi, Nakatsugawa City, Gifu Prefecture. The date comes from a pun reading "1104" as "ii (11) oshi (04)," roughly meaning "a good favorite." The anniversary was certified and registered by the Japan Anniversary Association in 2019.

A Day That Celebrates "Oshi-katsu" Fan Culture

This anniversary was created as a day for fans of anime and idols to talk about the one they love and support most — their "oshi." The company also plans events at its guesthouse to celebrate fans' favorites' birthdays.

• Who counts as an "oshi": an idol, actor, anime character, or anyone else you passionately support — everyone's "favorite" is different
• Growing on social media: every year around this time, posts celebrating people's "oshi" surge across social media
• A place to talk: it is also a chance to widen your circle of fellow fans

"Oshi-katsu" as a Lifestyle

The idea that having someone to root for adds energy and purpose to everyday life has become widely embraced in recent years. Collecting merchandise, attending events, and posting on social media are just a few of the many ways people engage with their "oshi."

Tips for Marking This Day

• Talk about your own "oshi" once again, in your own words
• Organize the merchandise or photos related to your favorite
• Search "#IiOshiNoHi" on social media and browse everyone else's posts
• Chat with fellow fans about what you love most about your favorite

Caring About Someone Makes Everyday Life Shine

Having an "oshi" adds color and motivation to daily life. Let November 4th be a day to be honest about what you love and talk freely about your affection for your favorite.