Rirui

Rirui is a young girl rescued from deep within a dungeon by the adventurer Hajime Shinonome. Bearing the exceptionally rare bloodline of an Ancient-species Succubus, she had been abandoned and left on the brink of starvation before Hajime found her. Filled with deep attachment toward him, she chose to share his life and walk the path of an adventurer. Cheerful and innocent by nature with a remarkable appetite, she transforms into an adult form at night and continually pushes herself to grow stronger so she can truly be of help to Hajime.