A fallen daughter who lost her fiancé to her sister-in-law is doomed by a genius magician (4) / Ozai

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

The three brothers and Iris are participating in a party in a neighboring country. Iris is attached to the mysterious beautiful young man ルベリウス, and his sister-in-law Helena is also present at the party. Although there were some ups and downs, the party went smoothly. Iris and Maverick were having a sweet and happy time as a couple, but suddenly a monster entered the party? "Good-bye, sister! You are a vampire sacrifice!" In the confusion, Iris hears an amazing fact from ルベリウス. The whole family fights against the pinch, Volume 4!