Of Swords and Parasols

Yoki Koto Kiku is about a family of children who find out that one of them is due to receive and inheritances from their recently departed parents. Cue very cute chibis doing wonderfully dark and awful things to each other (in humorous ways). Wonderfully funny, I picked it up back when it came out and was not disappointed. (It peaks somewhere near the middle, but the ending is satisfying enough)