This is a Red Samurai Top, part of the ReinaLove Sexy Ninja collection. Since it was Oda Nobunaga's samurai warriors that destroyed all the ninja clans, I couldn't help but design a samurai set to go with the ninja outfits.
Below is an image showing the different possible looks you can achieve as a sexy samurai by combining the various items from the ReinaLove Sexy Samurai collection.
ReinaLove Sexy Ninja Collection - Blue Ninja
ReinaLove Sexy Ninja Collection - Red Ninja
ReinaLove Sexy Ninja Collection - Black Ninja
ReinaLove Sexy Samurai Collection - Red Samurai
ReinaLove Sexy Samurai Collection - Black Samurai