Thanks for the chapter!
Btw, page 18 Rei should be saying "who earned my approval." not "who earned by approval." Speaking of Rei, she should run around the school 4-5 times as punishment for not showing up at a potential flag event when Ryuga was in pain and the aura took form of a long dragon stretching out ten feet over him. Speaking of harem characters, shouldn't at least one of them be in the same class if not all? Also, checked out the LN and before she appeared at the window she threw her sword so it just barely missed MC and impaled a poor tree. Would've nice to see MC's reaction to that. Also, explained he chose that moment to sneeze because getting caught while she was still in underwear making an erotic scene would boost her relationship with Ryuga while getting caught when she was naked would sour it. That and warning her about being able to see her panties was to avoid anyone other than the protagonist (Ryuga) develop or see things they shouldn't.