After all the nightmares are over... ~Defeated (former) magical girl then

The development has already stalled, so I'll give away the spoilers. The image is of a former magical girl who was completely defeated in the ``Final Battle'' and was captured and lost everything... She ``rejoined society'' and completely recovered as a girl... Over time, she transformed her former power and regained more power than before. Yuna's final true form after all the nightmares are over. And what Yuna would have become if she hadn't been born as a human. Commonly known as "Yuna-chan Valkyrie" Anyway... why is there a brick (on the right)? Yuna: “Ah, Subaru♪…(Notices that the brick has disappeared from his right hand) Huh?…Ah💧” Subaru (Yuna's biological daughter and eldest daughter): "Ohhhh... (← I purposely took a brick in the face lol)" Yuna: “I’m sorry💧...Subaru?” Subaru: “?...That’s crazy💦(←It looks like he threw away the bricks unconsciously)” Strongest Monster (Yuna's husband and Subaru's biological father) "Subaru...Yuna..." Yuna & Subaru “💦💦💦” (Screen caption "Tetsutsuchi!") (Dogot x 2) Yuna & Subaru “(Hold the top of your head) Mi’-mi’-mi’-(TT)”