Nanamori.

Nanamori (ななもり。), real name Masato Kashiwabara (柏原真人, Kashiwabara Masato)[2] is the leader of Strawberry Prince and CEO of STPR inc. He started live streaming on June 25, 2013[3], and he started covering songs in November 2015, starting with Umetora's "Koshitantan". He mainly uploads song covers to his YouTube, but he also live streams and uploads