MUDOU SETSUNA!!

Some info on this cute guy:

Setsuna is the main character of Angel Santuary. He's a tough-boy in high school who gets into lots of fights. Setsuna loves Sara, who happens to be his younger sister, which ends up getting him into a lot of trouble with the society and his parents. However, he is not simply a teenager in love...he happens to be the reincarnation of the Organic Angel Alexiel who rebelled against heaven, he is destined to play a vital role in the fate of the world. Complications occur when Setsuna refuses to be apart of the upcoming battle with Heaven and Hell. Only consumed by love for his blood sister, Sara Mudou, Setsuna’s life hangs in the balance as both angels and demons try to kill or save him. The end of the world is imminent, unless the fallen angel Alexiel can reawaken and prevent it. The question remains, ‘will Setsuna accept his fate or will his forbidden love consume him?’

What should i do..?