After learning that Seiya planned to join Fairy Tail, the guild Grandpa Rob had once belonged to, Mira decided to bring her younger siblings along as well.
In 778, after Seiya joined Fairy Tail, he reunited with Erza in the guild after two long years apart.
Seeing a companion from their days at the Tower of Heaven, Erza was deeply moved. It was also the first time she, who had always been quiet and withdrawn in Fairy Tail, displayed such intense emotional turmoil.
Later, when Erza told Seiya about Jellal, Seiya keenly sensed that guilt had caused Erza to shut away her heart.
To help Erza through that difficult time, Seiya began bringing her cake every day and training with her in swordsmanship.
But Seiya's series of actions made Mira, who was something of a delinquent girl at the time, deeply dissatisfied with Erza.
In Mira's eyes, Erza might have been suffering, but how was Seiya any better off?
After escaping that so-called Tower of Heaven, Erza had lost an eye, but she later found Fairy Tail, a place she could call a haven.
But what about Seiya? He had first been captured by traffickers, then sold to a mad researcher.
If Seiya had not been so lucky, surviving after having a Dragon Slayer Magic Crystal implanted in him, he might not even have been able to meet Erza here.
Seiya had already suffered so much, yet he still went out of his way to please Erza and tried to help her escape the shadows in her heart. That made Mira extremely unhappy.
Erza had merely known Seiya a little earlier. If they were talking about time spent together, Mira had been by Seiya's side longer, hadn't she?
For that reason, Mira began picking fights with Erza over every little