頭: head

painful / イタい: (slang) cringy; embarrassing

being from a certain place / coming out

a head as hard as a stone / stubbornness and inflexibility / an inflexible person

pain

to leave a place / to go out / to come forth, to be or become apparent, to appear / to make an appearance, to appear / (by extension) to answer (the phone or door)

pain, pain, go away

conjunctive form of 出る (deru) [ichidan]

石森: a surname

石井, 石居: a surname