常夏の孕ませ人妻アイランドへようこそ！ ～エロムチ義母達4人と無人島種付けバカンス！～

The protagonist's widowed stepmother. She loves the protagonist as her own son, but is more than willing to become his w...

The protagonist's aunt (second younger sister of his deceased father). Cool and intelligent, she's always helped the pro...

The protagonist's aunt (first younger sister of his deceased father). Athletic and exercise-minded, she's always helped ...

The younger sister of Mao, and the protagonist's aunt (though not related by blood). Gentle and motherly, she's always p...