nostraightanswer (otherwise known as Lupin, previously known as Kenji-B) is an American producer known for his work in mixing, lyrics and arrangement. He is also the voice provider for the VOCALOID4 voicebank DEX, and has created an UTAU voicebank, Kenji Baionoto. His real name is Sam Blakeslee.
As of February 14, 2018, Lupin announced that he would be phasing out the name "Kenji-B". The name "nostraightanswer" will be used for works where his brand as a solo musician is important, while "Lupin" will be used as a handle for any other works, as well as a casual name.