I've noticed that Perrine tends to call the MC "Mister" way more than his actual name, making me wonder if she's really 19. Then again, she's CLEARLY crushing on him hard, which is why I hope there's some adorable texts between the MC and Perrine. She insisted on knowing the MC's number for texting after all, and likes sitting on his lap...
One thing I really like is that your choices have far-reaching effects. If you "acquire" the panties at the very beginning, it comes back to bite ya quite humorously later, as well as whether you take Mariko up on her offer for blowjobs.