aheadofthenight.wordpress.com
Tendou-ke Monogatari vol.4 by Saitou Ken (天堂家物語 4巻 – 斎藤けん)
I manage to pick up volume 4 a while after it came out and it kept me hooked all the way. We see more action now and there is a shocking turn of events at the party. Spoilers ahead!