Marlin likes certain types of flowers (experiment with them), curries, and soups. Marlin's diary is in the bushy plants in the house. He wakes up at 6:00.

It may seem like Marlin is just a grumpy person but that is just his way of hiding his shyness. Because Marlin worked on Vesta's farm, it will probably have an influence on your son's interests when he grows up.