GUY Movie Review

No art. No glam. Just the movies you really care about.

Body Transformation: Rain (Bi) and the Ninja Assassin Workout

Ripped Rain in Ninja Assassin
If you’ve seen Ninja Assassin, or even talked about it with a friend, chances are you’ve heard about Rain’s amazing body transformation. And now that you’re primed and motivated to become a ninja yourself, let’s see how Rain went from an average popstar to a ridiculously shredded assassin.

Rain working out

The Assassin’s Workout

For the movie, Rain’s workout allowed him to go from 12% bodyfat to 5%. Here’s what he did:

  • Kettlebell workouts
  • Sword fighting and stunt work (6 hours of cardio)
  • Weights (2 hours a day, 5 days a week)

Rain Bi Body Transformation

Ninja Diet

Now that you know the amount of work you have to put in, you’re ready for the harder part: the diet. That’s right. As any trainer worth their weight (haha) will tell you, a proper diet is 80% of the battle when you’re trying to transform your body. Rain gave up rice and ate the following for 8 months:

  • Skinless chicken breat and vegetables
  • Potatoes
  • Raw fish
  • Salad

He was also allowed to have a plain beef steak cooked in boiling water about once a month. Now that’s dedication!

Ninja Assassin Training Videos

Check out these videos to get a better idea of the kinds of things Rain had to do. He hired the guys that trained the actors from 300, so I’m sure there was some circuit training involved.

Stunt Training

Working Out

More Strength Training

There’s no real secret to Rain’s routine that anyone else couldn’t do. So if you’re serious about transforming your body, just follow what you learned from Rain:

  • Eat clean
  • Work out religiously
  • Rinse and repeat for 8 months

Good luck!

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28 Comments

  1. DANG, he was so skinny before he started! he still has a baby face though :D lol

  2. Time to get in shape for the new year!

  3. he’s very nice to look at ;)

  4. How can you accomplish the nice tought just about this topic we chew over? The thesis service should hire professionals as you to do the thesis papers doing. Thence you do have a nice chance to join the team of masters.

  5. If you notice, he didn’t gain much mass in that 8 months. He lost fat. That’s the primary reason for his more muscular look in Ninja Assassin. Still looked kinda thin in NA in my opinion

  6. some videos are deleted, please reupload.

  7. Thanks for letting me know! I reuploaded the videos for you.

  8. He is so fine ,,,,,,,, even though i’m black ,,,,, he’s still cute.

  9. Yea i think he’s sexy too! i dont care if he’s so thin , i jus think asians are really good lookin. i’m hispanic but i prefer black people and asian people.

  10. Hi I think he’s so good looking I love Ninja Assassin SO much it’s like so my favorite film I loveRain soooooo much xxxx I really want to meet him and he worked so hard for this film xx I’m black as well but DAMN he is SEXY xxxxxx :)

  11. I love his body also I love Asian boys x

  12. DANG HE IS SOOO HOT!! l0l ;)

  13. his so hot and the movie is great i love it, more power for u!! :D

  14. Ninja assassin is amazing..I think its my best action film i’ve seen this year..Very touching..Betrayal begets blood

  15. Theodosia I’m black to and he is FINNNNEEEEEE!!!! like……..DANG!!! I’M SPEECHLESS!!!

  16. I love Rain. Hes a great actor and his songs are amazing! When this movie was first announced on T.V. I was soooo happy. Once i saw it i was speechless. He is some yummy eye candy.

  17. I don’t really like his body in NA…he looks so skinny..i think his body in fullhouse is hot..!

  18. god, Rain’s hot, i mean, he’s totally RIPPED!!

  19. I just watch Ninja Assassin for the fifth time in a row and I’m just amazing how awesome Rain is in the movie. I can’t wait until the sequel comes out and hopeful he gets more attention in the US. Plus I just watch old episode of the Colbert Report where Steve challenge Rain to a dance-off and Rain was amazing. He is someone I definitely will keep my eyes and ears out for. Yo, Rain if your reading this, never it will never happen.

  20. heel moi film de ninja assasin i love rain echt supper cool

  21. Yeah… Aussie (Australian) and also voting on the ‘dang, Fine’ thing. Mmmm…

  22. I Love His Body N The Movie! Its So Awesome!!! He Is So Fine And Buff!!!! And Im mixed
    Asian~~~>Vietnamese/Black I Would Love To Meet Him!!:)

  23. Bi (Rain) is absolutely adorable. I saw him in Full House before I watched Ninja Assassins, and I was like, “Woah. I know him.” Needless to say, I was thrilled. Is he the next Jackie Chan? :P I love in the movie, when he was like “Miki, Miki. I like you more and more.” So cute. His body is impressive, and his face is too, though I find asians attractive in general. Seeing him in an American movie made me love him even more. & His English is so good. :D

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