Hiroki lives with his cousin.
Hiroki's cousin is three sisters.
The eldest daughter of three sisters is Yuna, the second daughter is Rena, and the last daughter is Mana.
Yuna is a florist.Yuna is a leisurely personality.
Rena often makes fun of Hiroki.
Mana loves Hiroki like her brother.
It is an adult comics that wrote a sugary daily life with three sisters.
*Sorry,this comics is written in Japanese.