I absolutely love it! Shouta and Tsumugu are childhood friends. Shouta has always been the leader, meanwhile Tsumugu always followed him. Both are pilots and now are still working together. Shouta is a player, meanwhile Tsumugu is the taciturn type, so one day Shouta ends asking for Tsumugu's help to get away from a girl so Tsumugu kiss him. And then, their relationship evolves to sex friends.
I loooove that it's from friends to lovers story and that it's totally requited love since the very beginning even if Shouta took his time to realise that his desired to be together forever was something more meaningful.
Seifuku wo Matoeba, Umaku Uso ga Tsuketa no ni