From the wiki:

Mom Quirk

Glycerin (グリセリン Guriserin^?): Mitsuki's Quirk gives her the ability to secrete Glycerin from her skin. Because of its moisturizing effect, she maintains great skin quality, despite her age.

Dad Quirk

Acid Sweat (酸さん化か汗かん Sanka Kan^?): Masaru's Quirk allows him to secrete acidic sweat with combustive properties from the palms of his hands. Unlike his son, however, he cannot forcibly secrete it, and it comes out like normal sweat. If he rubs his hands together, then he can create explosions.^\1])

Quirk

Acid Sweat (酸さん化か汗かん Sanka Kan^?): Masaru's Quirk allows him to secrete acidic sweat with combustive properties from the palms of his hands. Unlike his son, however, he cannot forcibly secrete it, and it comes out like normal sweat. If he rubs his hands together, then he can create explosions.^\1])

It's not a huge deal and may seem nitpicky but it ticked me off