ぃろはは is a method of arranging Japanese pseudonyms in order. Because the content has substantial meaning, it can be regarded as a full-letter sentence.
It comes from heian period's "Song of Irubo" (794–1179). This poem was first written in A.D. 1079 (three-year system) The Classic Sound and Meaning of the Best King of Jin Guangming. "ぃろは" is the first three sounds of this poem.
Japanese morphology
Japanese is very diverse, not only in spoken and written language, but also in simplicity, simplicity, dignity, solemnity, men, women and children. People in different industries and positions speak differently, which reflects the strict hierarchy and team thinking in Japanese society.
The honorifics in Japanese are very developed, and the use of honorifics makes Japanese in public very elegant. However, the overly complicated grammar makes it extremely difficult to learn honorifics, and even Japanese speakers can't fully master them.