When the sonic boom first reverberated all around them, most of the people on the scene weren't sure how they'd react since it came so suddenly. Even the reporters who were stationed on the shoreline instinctively ducked, expecting some sort of low-altitude jet to appear.
Most of the people were surprised, to say the least... most, except Fury.
Even if Fury had his eyes closed, he could easily recognize who caused the sound. Then again, there was only one superhero who could cause a sonic boom in the entirety of Japan.
Otomi Elimine, superhero name 'Plume', ranked (undisclosed).
"Hey Satoshi, are you all right back there?" Plume greeted in a friendly manner.
"Mom? Elimine-nee? What are you two doing here?" Satoshi called out, joining them as they hovered in the sky.
"Plume, drop me by the foot of the Dungeon. Look after my son for me." Ayumu tersely said, causing Plume to panic a little as she dropped her where she wanted to be.
There are two references on the title ;)