Help me plz

im looking for a manga but i dont remember the name. It was about a boy who played a game with his friend and they meet another player and made a party, later they got ''married'' in the game (?) They wanted to meed irl and they found out that the ''new party member'' was two brothers sharing one account, both of the brothers liked the boy. If i remember right, the boy (main character) haven't meet them before (just his friend) and didn't know there was two people playing on that account.