Kinosaki Mao lost his mother since middle school, and living with just his father Hajime.
But his father too, suddenly left him at the same time he’s enrolled in university.
Leaving only a note that told Mao to not worry about him.
Then 4 years passed, near the end of Mao’s graduation, He’s still not able to get over his mother’s death, and developed Gynophobia disorder as a result.
And then one day.
While coming in contact with her, Mao is gradually attracted to her as a woman rather than as a mother.
[Translated from Getchu description]