Well, this is obvious, but Tsukasa, the male protagonist, is much more feminine than the average male protagonist. He can even act stereotypically feminine sometimes. He also puts on feminine clothing and wears a full face of makeup!
Hereās the series. Tsukasaās the one wearing pink!
https://m.tapas.io/series/Haru-and-Tsukasa/info
This is what Tsukasa, my male lead, looks like. Heās so feminine that he ends up looking like a girl!