I've noticed that a lot of the sports manga I've read have a male coach both for boys' and girls' teams and it got me thinking: are there any interesting sports manga where the team's coach is female?

I only know of Saotome Girl, Hitakakusu.

Kuroko no Basuke. (But the male lead isn't romantically involved with the coach at all, just as a heads-up)

Angel Voice

"We can not resort to simplistic or extreme solutions which substitute myths for common sense." ― Jimmy Carter

Ookiku Furikabutte

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Crimson Hero