Type Project has launched the Seasonal Font Project as an attempt to enrich and express the Japanese language more delicately by designing a typeface reflecting seasonal features and putting the air of each season into the characters. The first release is TP Iris, a fine-looking typeface with in the image of the flowers “iris” and “Japanese iris,” representing early summer. While modeling a transitional typeface, it is an easy-to-use sans-serif typeface that conforms to modern applications. Its Kana is based on refined Kana in the Heian dynasty (A.D. 794 to 1185a); an elegant cursive script developed in Latin around the 16th century as a model. TP Sky Classic, in which the block style structure is modernized, is adopted for Kanji.

https://typeproject.com/en/fonts/tpiris