Lacy is a young twenty year old who is Crysta's cousin. She came with her mom and dad to attend Crysta's wedding. Lacy is very impressed with how Crysta has grown up and is more glad that she's getting married. Though she was a little unhappy not catching the bouquet that Crysta tossed it made no difference to her goals. Her aim is to find a partner that she can love and create a family with. She'd move at a rate gradual enough to the Magikert standard of course. When she mentioned her dream to Mikage, she was set up with Shirou. Lacy, wanting a male that she can love forever and ever, warmed quickly to Shirou. Though they just met, there is a great potential for them to become partners.
When Crysta and Aika crafted a plan to get the two together, Lacy and Shirou were beginning to get into each other. When they touched Aika at the same time, an amazing amount of energy surged through both of them. This immediately binded them and made them fully willing to become mates. Lacy enjoyed this feeling immensely and even outside the love surge, was super happy to have had the day. During the love, the energy drove both of them to become mates. Lacy's mark is a nest, which Crysta suspects means lots of babies. This is not true according to Cody, as it means nurture from what he says.