This side story occurs in a different place and at a different time than the modern-day city of New Opal. However, the theme of Blake being tiny around normal-sized women remains the same. Here are some options for where and when this story can take place:

1. Born at about an inch tall to an elderly couple in feudal Japan, Blake spends his youth training to be a samurai. Upon reaching adulthood, Blake arms himself with a needle and sails off to Japan's capital to offer the Emperor his service - eventually meeting his lovely daughter in the process!
2. In a medieval European kingdom, Prince Blake has come of age and is pressured by his family to find himself a wife. Unfortunately, he chickens out of his first date, leading the waiting woman - a witch - to magically shrink him! Various complications are possible for the now-puny prince.
3. In a fantastical Arabian kingdom, Blake is a lowly thief who "borrows" a mysterious lamp from a shady merchant. Upon rubbing it, Blake is greeted by a wish-granting genie! He uses his first wish to shrink himself down, so that his heists can go unnoticed. Size-based hilarity ensues!
4. In early-1900s Mexico, Blake is a young-adult matador with a massive losing streak, much to the worry of his love interest. In a bid to wow her without being trampled by another bull, Blake tries to enter the realm of the dead to seek help from its ruler, Santa Muerte, but his attempt shrinks him to the size of a bug instead! How will he win his crush's heart now?
5. In mythical ancient China, Blake is a warrior-in-training tasked with embarking on a Journey to the West, collecting a magical fan with ice powers, and ridding the land of a powerful fire demon. However, a curse cast by the demon shrinks Blake to the size of an ant just as he reaches the princess's palace! Can he obtain the Blizzard Fan and save China, or will his small stature get in the way?
6. In Victorian-era Britain, Blake is a budding detective hired to solve a series of disappearances and bizarre crimes. Early on into the case, Blake is mysteriously shrunken and must partner up with a normal-sized private eye in order to find the culprit and bring them to justice.