My Rich Little Brother (2022)

Both are short length dramas with the older FL and younger ML knowing each other years before and now ending up working together in the same business. At first, the FL ignores the ML's interest in her, and treats him like a kid.

Both are short dramas with an age gap between the leads, and past trauma that an adopted or step brother is responsible for.

Both are mini dramas with a older FL/younger ML pairing with a childhood connection or friendship.
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Both MLs witness the death of a family member as a child which traumatizes them and has a fantasy physical side effect (hearing minds vs. not growing). They become attached to the older FLs who helped them, and search for the FLs when they become an adult, finally reconnecting. Both MLs fall for the FLs first, but she views them as a kid at first. Both dramas have an identical scene where the couple is kidnapped, threatened with fire, and told to choose which of them should live, leading them to state the survivor will suffer more. Both MLs disappear for a year without warning due to the killer, who is still in their lives after all the years.

Both MLs witness the death of a family member as a child which traumatizes them and has a fantasy physical side effect (hearing minds vs. not growing). They become attached to the older FLs who helped them, and search for the FLs when they become an adult, finally reconnecting. Both MLs fall for the FLs first, but she views them as a kid at first.

Both FLs are hired to help the younger ML. Both MLs fall for the FL first, but she is reluctant to accept them due to the age gap. Both FLs are being pursued by at two other guys besides the ML.

Both are short length dramas with an age gap romance between the main couple (older FL and younger ML). In both, the ML falls first and openly expresses his love for the FL.

FLs are business women and the MLs are younger. Both MLs fall first, and the FLs are hesitant but obviously interested. Both FLs' parent (father vs. mother) object to the relationship due to the age gap.

FL and ML have the same age gap in both dramas, with the younger ML falling first, but the FL viewing him as a younger brother for years before finally accepting him.

Both of these dramas consist of an older FL who helped the ML through tough times as a child. Years later, the ML goes in search for her and tries to repay the favor.

Both are mini drama romances with an age gap between the main couple. Both MLs fall first and pursue the FL who is reluctant due to the age difference.