age group (demographic grouping based on age)

age of majority (age at which the rights and privileges of an adult are legally granted)

air conditioning, lowering the indoor air temperature / air conditioning, a system producing cooler air

Kyūjitai form of 幽霊

お礼: an expression of gratitude

precedent

pilgrimage / a pilgrim / (fandom slang) visit to the real-life locations that served as the models of fictional locations

to go on a pilgrimage / (fandom slang) to visit the real-life locations that served as the models of fictional locations

encouragement, incentive

neat, tidy