Ra'eesa Sosi exploded through the rooftop of her uncle's library when she was fifteen years old. She became a local hero, despite her own low self-esteem. The government showered her with gifts and her family also received greater assistance. Almost without her permission, Ra'eesa became Libya's foremost uberhumans. With her immense strength she was able to assist with disaster relief, help train the army and construct skyscrapers in Tripoli.

The people called her Kebira Akht, or Big Sister.

After five years working closely with Colonel Gaddafi and the Libyan government, Ra'eesa discovered that agents of Egypt had infiltrated Libya and were looking to bring about a military coup. She attempted to thwart the invaders, going so far as to rip apart a military barracks on the border with Egypt, but realised that Gaddafi had already made a secret pact with the power behind the Egyptian government. Horrified she battled against the terrorists and her own army, before fleeing Libya to avoid capture.  The Sons of Set sent powerful creatures to bring her down, but Ra'eesa survived and made her way to Europe where she slipped into anonymity, devastated that her country had betrayed her and her people.

She went into exile for a long time, mostly to avoid being tracked down by her former government who seriously didn't want to lose such a powerful 'weapon', but when Africa Force was established in 2003, she came out of her 'retirement' and assisted the Tsholofelo family in the hopes that Libya could be freed from the influence of the Sons of Set.  She was assigned to the Africa Force team in Harare, Zimbabwe; and has worked with the team for the past three years. While still concerned about her country's lack of freedom, Ra'eesa has lost some of her passion. The secret war has gone on for too long.

Ra'eesa is happiest when she is alone, reliving her quiet life in the dimly lit library of her childhood. She has terrible self-esteem and it isn't helped that she is also an exile in Zimbabwe. Libyan agents pester her to return and even attempt to kidnap her when the opportunity arises. While the attempts are futile at best, they do put a constant strain on her life. She is terrified about being returned to Libya where she knows she will be imprisoned and possibly tortured. She goes through the days in a state of exhausted fear.

When she does manage to release the fear and grow to her full height of 15m, Ra'eesa seems to cast off her worries. She is comfortable with her body when she can look over the rooftops and mosques of Harare. A part of her hopes to be able to protect her adopted home, but she is always an outsider there. Her own home seems so far away...

"You think I ask to wear this teeny bathing suit? You think a woman my size has a choice?"

Kebira Akht is able to grow to 15m and at that size she weighs somewhere close to 100,000kg.

When fully grown Kebira Akht is a veritable powerhouse: easily one of the strongest beings on the planet. A drawback of her immense size is that it makes her an easy target for opponents, particularly artillery. However, Kebira also has some artillery of her own, able to generate plasma energy in her body and release it in streams of devastating heat. She is only able to release this energy when she is fully grown, a byproduct of her metamorphic ubergene. The intensity of her blasts is enough to level tanks and even the most formidable of the Sons of Set.

Ra'eesa is very aware of her destructive capacity and shies away from direct combat in built-up areas.  She knows the devastation wrought on civilians when uberhumans fight.  Her team mates have supported her hesitancy on most occasions, but there have been periods of resentment and disbelief when Ra'eesa has hesitated just that little bit too long.  She feels that she is responsible for the destruction she causes and won't allow herself to be bullied into action, even by her team mates.

Ra'eesa Sosi is a large woman, both in height and weight, in her late twenties. She has always been made to feel uncomfortable in social situations and has developed a way of slouching to make herself look less tall, but it tends to make her look fatter. She appears to be desperately unhappy but she laughs off any suggestion and tosses a few sarcastic remarks into the air as a way of avoiding any sympathy.

When she transforms, however, Ra'eesa casts off her lack of confidence and attains an impressive 15m in height. Her clothes are shredded, except for the bikini she was given by Africa Force. Her strength increases tremendously in her giant form and Ra'eesa has yet to find an opponent who can match her strength.