Tifa, Bright and optimistic. Tifa always cheers up the others when they're down. But don't let her face fool you, she can decimate almost any enemy with her fists. She is one of the main members of AVALANCHE. She and Cloud were childhood friends, and although she has strong feelings for him, she will never admit it.
Tifa is undeniably beautiful and though she possesses great strength and technique in the martial arts, she is emotionally fragile and unable to cope with hurting others even if it means a massive sacrifice on her part. She is rather introverted and often lacks the spontaneity and badgering personality that Aeris puts forth simply because she does not think to cause commotion regarding the “love triangle” between herself, Aeris and Cloud. She is often the “damsel in distress,” and even though her love for Cloud is limitless, she is extremely uncomfortable expressing herself regarding her love him - even if it means acting unaware under certain circumstance. She is a strong believer in what is just and will make a strong impression of that. Above all, Tifa is an extremely caring woman who would give her life for the greater good and for the needs of others.
Tifa had many secrets hidden from Cloud. When Cloud believed himself to be the First-Class SOLDIER, Tifa hid from him the fact that Zack was actually the SOLDIER who came to Nibelheim.