Well you know the what if, if the mc is any weaker this succubus would have use him as a tool rather than forming an allegiance so it's a right choice to be careful around her and use her capabilities to the fullest
Haaa i thought this is just an adventure manga with no harem aaah my disappointment is immeasurable and my day is ruined. Harem is not entirely bad but if the harem members is useless by having no characteristics of it's own other than being a harem member that's just the worst
Hmm she's a madochist didn't expect that considering how she treat her brother or maybe all her words is actually the exact opposite of what it means when she talk to her brother