Hahaoya Mahou Shoujo Loli-ka NTR Manga

A young mother discovers a mysterious magical artifact that transforms her into a magical girl, but the transformation has an unexpected side effect: it reverts her body to that of a young girl. Struggling to adapt to her new form, she must navigate the challenges of her daily life while hiding her secret from her family and friends. As she tries to find a way to reverse the spell, she encounters a sinister figure who exploits her vulnerability, leading to a series of compromising situations that threaten her relationships and her very identity.