I can't help but think of how much the blond guy reminds me of Asaichi from one of Harada's works (their only similarity is blond, tsun, ear piercings, shorter than black haired guy)
Update: holy fuсk I found gold, ts is peak (found 3 more parts of this series on one hеntаi dоujin site)
Absolutely love Sakisaka, need to see this guy in even more Situations™