Lovely Writer (2021)

Gene is a professional writer whose publisher suggests he try his hand at a new genre—Y.

The resulting novel is a huge commercial success. So successful, in fact, that it's being adapted for TV. When the series begins casting, Gene is invited to auditions where he can be consulted. He’s not really concerned about any of the actors until he meets Nubsib who, right from the start, shows open admiration for Gene. Will Gene accept Nubsib's love? What will it lead to?

(Source: Soju at MyDramaList, edited by Gene12131 and others at MyDramaList)

~~ Adapted from the novel "Nap Sip Ja Jup" (นับสิบจะจูบ) by Wankling.