Kyūjitai form of 中脳 (“midbrain”)

a function

function (as something), work

normal

something that is normal, normality

Kyūjitai form of 脳

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

inside