Both of these dramas feature a sommelier/wine critic male lead, with a female lead who must test her own abilities against his. The two leads have a mutual connection through a a third party, and both dramas feature an undercurrent of mystery.

In both of these productions, a popular student and nobody in school strike up an anonymous penpal friendship through exchanged notes - with one student knowing the whole time who they are conversing with and maintaining a hidden identity in fear of rejection.

Both of these dramas center around a female lead who is in a 5-year marriage that has lacked intimacy for several years leading to a sense of unfulfillment and a venture into infidelity from at least one of the married individuals.

Both of these productions center around a male lead trying to make sense of how his homosexuality fits within his religion and attitude towards religion, putting him in a difficult position when another boy in his religious circle starts showing interest in him.

Both of these productions are rather mellow, portraying a standard life-like tone and situations centered around 2 leads. Despite the life-like tone, they both feature a slowly unravelling mystery with an ambiguous element of magic that gets weaved in throughout the film.

Both of these tiktok/youtube short romance "dramas" are composed of isolated cheesy romance scenes as we see their relationship blossom from strangers to lovers.

Both of these short Korean productions feature one lead who is receiving anonymous notes from a secret admirer. The story unfolds as they try to figure out exactly who it is in the room with them.

Both of these Korean BL dramas take place in the working world and possess a similar simplistic, classic drama tone that doesn't necessarily excite viewers, but makes for a comfortable watch.

The romantic leads of both of these dramas just came out of relationships that ended due to the infidelity of their partners. Due to circumstances, the leads wind up cohabitating in a house together. Both dramas also focus on the dynamics between the leads and their coworkers/friends, life and relationship lessons, conversations about marriage and life plans, and the professional backdrop of the setting.

Both of these dramas involve a prominent storyline related to the concerns of mental illness on the relationship.

Both dramas center around a Male Lead who is extremely selfless towards those he cares about, putting his own needs at less importance than the needs and dreams of his family and love interest. Male lead's attitude towards the female lead is also very similar from start to finish. There's also a heightened focus on the leads and their relationship with their found families around them.

Both dramas center around characters with mental illnesses, undergoing professional treatment and personal care. The characters fall in love, wrestle with guilt, and mend strained relationships with family members. Although the specific disorders are very different, the dynamic between the ML and FL of "We're Not Trash" very much resembles the dynamic between the second couple of "It's Okay, That's Love."