Didnt think shed be so nice as to tell him all of this stuff. This chapter reminds me of certain My Dress up Darling parts when the dialogue is pure tips about cosplay and makeup.
They can mean 11 12 13 14.... damn. Or they mean 10,000 yen people.
I saw that in Watamote
Class A - 10000 - budget date
Class B
Class C - 30000 - Aya Nakatani's usual dating ( no sex) and Rina's first XXX with a fugly.
Class D - 40000 - Rina's level