Ten years ago:
Male protagonist: Who am I, where am I, who are you
Male supporting actor: ... Your master.
Ten years later:
Male Protagonist: Did you hear that?
Male supporting actor: What?
Male protagonist: The sound of flowers blooming...
Male supporting actor: We haven't seen each other for ten years, my disciple, you... Are stupid again.
Male Protagonist: I'm serious.
Male partner: Wake up, don't sleep during the day.
Later later:
Male partner: It smells really good.
This article is also called "The ulterior secrets of the male protagonist and male supporting actor"
"The Overbearing Male Protagonist Falls in Love with Me"
"The death I did back then were all the tears I shed later."