Akumade Kujaku no Hanashi desu.

Kuji Yakurou, a high school teacher, experiences heartbreak after being dumped by his girlfriend, who cites his perceived lack of masculinity as the reason. Feeling distressed, he is approached by Akano, a successful model and student leader of the Biology Club, who invites him to serve as the club's advisor. She asserts that masculinity plays a role in attracting women, citing the peacock's elaborate feathers as a biological example.