Iria Fukumune

Bust: 92.5 cm Lisara's rival Grim Reaper during her school years at Grimwald who is also a famous pop idol in the human world. Despite being second in the school (first being Lisara), she has the biggest bust size of the main cast. However, her large breasts are revealed to be a result of infusing breast pads with magic, and her actual bust size is smaller than Lisara's. Her weapon "Froddy" is a falchion. (Source: Wikipedia)