Sumiko is someone born between July 23rd and August 22nd, making them a Leo. Leos are known for their bold and confident nature, always the life of the party and ready to take on any challenge that comes their way. Sumiko is likely to have a strong sense of intuition and creativity, making them a natural leader in any situation. They are fiercely loyal to those they care about and will go above and beyond to support their friends and family. 

In relationships, Sumiko may be a bit stubborn at times, but their passion and warmth make them irresistible to others. They thrive in positions of authority, where they can use their natural charisma to inspire and motivate those around them. However, they may struggle with authority figures, as they prefer to be in control of their own destiny. 

In terms of career, Sumiko is likely to excel in creative or leadership roles, where they can put their unique talents to good use. They are not afraid to take risks and will stop at nothing to achieve their goals. Overall, Sumiko is a dynamic and charismatic individual who is sure to leave a lasting impression on everyone they meet.