According to authorities, the man sold figures for prices ranging from 1,000 yen (about US$9) to 15,000 yen (about US$137) each.
Police in Inashiki, Ibaraki arrested a 39-year-old male suspect on Thursday under suspicion of modifying and selling Love Live! character figures without permission.
The suspect reportedly admitted to the charges and said the figure sales helped cover living expenses.
The man is a resident of Yachiyo, Chiba and self-described as a member of the sales industry.