堀田 菫

A woman who is working at a fitness club in her neighborhood. She divorced with her cheating husband right after giving birth to her son Takao, who is currently 3 years old. She's raising him on her own. Has a fresh and boyish look, but is earnest and straightforward. Is overflowing with maternal instincts, and thus she is good at looking after people. 

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It is implied that she actually sees her son in a sexual light after enjoying sex with a man while in front of her sleeping son./