This "Un 1" features Tokyo-born RIN a.k.a. Nukui Riran. RIN grew up in Odawara City in Kanagawa Prefecture and has been into hip-hop since elementary school. She started to explore the genre after listening to the track “Urban Grammar” by old-school nineties Japanese hip-hop crew, Scha Dara Parr and started rapping in 2014, with the help of producer K.E.N a.k.a. kiddblazz. Together, in 2014, they put together the “DRIP EP” and have since released another EP called “Eniro Nana Hengen (Glossy Colors Seven Transformations)”. In 2016, she released a full length album, “Rinne (Cycle of Life and Death)”, on Taidou Label, featuring guest spots from Ken The 390 and Meiso. She also was the feature MC at the 2018 Poetry Slam Japan competition. During the 2020 global pandemic, RIN connected with Unkahmn via Twitter and the two soon decided to collaborate on a project. The resulting product, "I Wish", is only the beginning to their international musical relationship.