Nana to Kaoru - Vol. 5 Ch. 36 - Fidgety on the Outside, Steamy on the Inside

[MangaDex]

 

[DeprivedOtaku]

The sister is driving me crazy! Enemy Detected!

 

[himi-cat]

Kaoru's a genuinely good guy underneath the self-loathing and horniness

 

[LikTinn]

This sister is sharper than detectives wtf