I see Keine also has Saiga's walking through walls ability.
A day at Kourindou 10N-No~
That's not... Wha... Whaaat are you saying?! It's fine, Mokou. Sumireko is a really important provider of outside world items! Her role is essential. They're not customers and I want them to go home...Waah, it's unusual to have so many customers here.Even Mokou-san is here!Sumireko!?
You... you're here; so the rumor was true...Sumireko... stop coming here alone, it looks like you're doing things like in erotic doujins.Erotic doujin...?
Erotic doujin?!I knew it Mokou, you were raped and lost your virginity, didn't you?
Was it Rinnosuke!?What are you even saying?You're wrong!And Keine, please leave now or things will get really complicated!You're horrible, Mokou!I want to end them all with a pile driver.