I need you holding me again (assassin AU) {Levhina}

Hinata has been an assasin since he was 8yrs old. By the end of middle school he started dating a guy named Lev. He had quit being an assassin since Lev might get hurt. Even tho he wished of no harm to come to his beloved boyfriend, luck was not on his side. The enemy found out Lev was his only weakness since his family is dead. So they targeted Lev and threatened to hurt him. Hinata then broke up with Lev, not that he fell out of love but to protect the love of his life. The break up hurt hinata really bad. He took up bad habits like smoking and drinking, also joining back his assassination group to finish of their long term enemy. After all was done and he finally defeated their enemy he was content on finding and getting back together with Lev. He finds the love of his life but his heart breaks to see who he is with. Lev and Yaku have a couple complex with Yaku being the tsundere. When they met again there was tension. Hinata had had enough of it and then just straight confessed everything telling Lev that he still loved him so much. Whatever hinata saw he misunderstood, Lev and Yaku dont like each other like that. Hinata wishes to get his silver haired boyfriend back... Will Yaku and Lev develop feelings for each other or will hinata explain everything and they start dating again?