Chapter 31 : "the marmot puts the chocolate in the aluminium" is from a French TV ad where a woman dreams about how Milka chocolates are made and tells another woman in the queue at a supermarket.
Then it's not Yes-yes land but Noddyland. Noddy is called Oui-oui in France.
Good story but a deep lack of hot teen couple stuff. When you add teens with couple, it equals sex. It is universaly known but the author had this idea to finaly ship yaoi. Just drop one or two sexual stuff between MC and his girl and they never break up this easily.