Nash was born in Hidden Cloud Village. He was part of the aburame clan and was very skilled. He became a Genin at age 6 and a chuunin at age 8. He surpassed all of his clan members and was a skilled jounin. He left his village in seek for more power and found a organization known as Akatsuki. He joined akatsuki and had no partner. He mastered in Raiton jutsus and was a Ninjutsu specialist. He kills anyone in his path and cares for no one but himself.
Nash was assigned to the 7 tailed Demon. He has not a clue about what it's powers are and where it is located. He got right on it. He traveled to waterfall country to find an old lady who says she knows where it is located. He gets through the waterfall entrance in a matter of seconds. He finds the old lady gardening in her garden and grabbed her in a blink of an eye. He made her tell him where it is located (by threatening to kill her plants) and she said the host of the seven tailed beast was in Lightning country. Then the old lady screamed and brought atention to her house. Nash quickly killed the waterfall shinobi in his way and took off. On his way to lightning country he wondered if anyone would know who he is. But he didn't care that much and continued his journey. When he made it to Hidden cloud village he killed the guards instantly and charged right in. No one in Cloud village knew who Akatsuki where so he had no trouble walking right in. As he was trying to find the host of the 7 tailed beast he noticed his old sensei's voice. He wondered if it was him so he followed the voice. He peaked in the window and realized his old sensei is now Raikage. He smurked and took off. He questioned the owner of the ramen hut about if he knew anything about the host of the 7 tailed beast. He said he wasn't supposed to speak of it but told him anyways. He quickly went to find the jinchuriki.
Okay well in our game best be watching your chakra, we'll prolly add a small chakra regain thing as you walk or something but Aburame's chakra would not regain because of the bugs feeding all over that chakra