Inosuke father - Inosuke with his mom and step dad (SPOILER) : KimetsuNoYaiba

Zenitsu breathes as slowly as he can in an attempt to slow down the poison.

One unusual aspect of his flexibility is how it extends to his internal organs as well, since he is shown to shift his heart to a different location so that Daki couldn't pierce through his heart.

She tells him she is going to save him.

You're finally home, you've been gone for months! Arm wrappings fastened to his sandals by what seems to be a knee-high fuzzy mask that reveals his feet and legs.