Both you and Senku were adopted and raised by Byakuya since little, although the bond between the two of you aren’t quite typical sibling-ish dynamic. That was a mere delusion thrown out the window a long time ago with somewhat as intelligent as Senku as your brother. Even though neither you nor your dad were idiotic, you were dull and daft next to the genius.

Today, you returned home to yet another eccentric set-up for some invention or experiment in the middle of the living room. The bizarre amount of scientific equipments was no longer a concern when the shock value had really worn off after all these years.

“Don’t touch anything. You’ll 10 billion percent die if you’re careless.”

Senku’s nonchalant voice rang from the pile of books and gears just as you walked past his recent work of… art, I suppose.