This position of Mercury will show a person who very much loves various intellectual games, or who very much loves to figure things out for themselves. The 5th house represents the heart, children, hobbies, and risk, and shows how we fall in love and how we relax. Accordingly, this position of Mercury will indicate a person who has a special love for solving intellectual problems. They are able to think passionately and enthusiastically. They love to read and relax with a book in hand. They often have intellectual hobbies, such as chess or intellectual quests.
They love to learn, explore, travel, and make connections. They always need mental stimulation, and learning or discovering something new brings them particular pleasure - it is a need for them.
A person with this Mercury placement can be an excellent orator and beautifully recite poetry. They speak vividly and enthusiastically.
Of course, we also look at the sign Mercury is in, as that will influence the priorities, for example with Mercury in Cancer they may prefer emotional, touching novels, while with Mercury in Scorpio they may be more drawn to mysteries and detective stories.
The 5th house is the house of the heart. When this person falls in love, they may analyze their feelings rationally.
The 5th house also represents risk, but with Mercury here, they are more likely to carefully consider their steps rather than diving headfirst into an adventure.
In terms of children, the owner of Mercury in the 5th house will build intellectual, friendly relationships with their child - for example, going to see performances together and then discussing them, or learning together in courses, being on the same intellectual wavelength. Of course, relationships with children are also seen through the Moon, but with Mercury here there will be an intellectual involvement.