a few weeks before solfon approached diaz, he met elle for the first time since she had left, and was also introduced to gau ban. diaz took an immediate liking to gau and considered him as family, telling gau to protect elle for him. when the lighting battle occurred, gau was ordered by scarface to protect diaz; and unbeknown to him, kai shinks was also on his way. when they arrived at blorahan, solfon had already surrounded the town. kai offered diaz some medicine that would delay the deterioration of his body, however diaz refused as he believed that everything that happens is for a reason. he lent gau his prized black wing boomerang, the source of his nickname, so that gau could use it to protect his own life while kai escorted him to kuruda.