Thomassenff has 1 Haru Nemuri concert.

Haru Nemuri (春ねむり) is a Japanese singer-songwriter and poetry rapper. She began her music career as a player of synthesizers in a band when she was 17 years old, and she suddenly began to perform as a poetry rapper at the age of 21. Since then, she has been Haru Nemuri and called herself as the singing ultimate weapon.