|Mr. Boxer Keychain|
|Note:||One of Mirea's most prized possessions|
This is the keychain that Mirea treasures as it was a gift from her sister Crea and it fits in with her love of extremely cute things. It was also one of the things that brought Mirea in contact with Shuto after some jealous classmates stole it and threw it away. Shuto finds it and returns it back to its owner, thereby gaining Mirea's trust and interest in him, especially with his desire to become a hero. Ironically, this would eventually lead to Shuto becoming Ratman .