The writer didn't have much imagination. It's a story where the leads believe in not learning lessons. Seems to be aimed at children who don't have the mental capacity to understand if a certain scene is funny or not. That's why weird sound effects have been inserted to tell us when a silly funny scene is shown.

Story - A single father whose mother-in-law wants the custody of his kids coz she thinks she'll do a much better job, him claiming he doesn't want a wife and yet manipulating his kids to accept Chat but also flirting with the FL.
FL's dad forcing her to be with the captain even when she says no but she is interested in the ML and yet flirts and uses the captain.
By the end the evil girl gets away with everything without any punishment and the leads have a happy ending.

Somethings that stood out - The ML gets drugged by Chat so that he can be framed for sleeping with another woman but he forgives her so that she can have another go at it and she successfully does so.
ML leaves his child unattended in a public place to attend a phone call who then gets kidnapped.
FL, who is a teacher, does the same with her student who too gets in trouble. Teacher of the year ends up getting suspended and rightly so.
FL leaves the kids of the ML unattended to attend a call, the boy runs on the street for some reason and gets hit by a car.

FL forgets all about her career and dreams while trying to set up ML's life but when things go south he runs away leaving his kids with his MIL, and later is with Chat taking her help.
And the kids get kidnapped AGAIN.
ML comes back after settling his debts but now the FL doesn't want him. Not because she has self respect but coz her dad doesn't like the guy!
Even the writer had no idea how to justify the ML's actions so in the end the guy takes a bullet for the FL and all is well.

Nothing special to write about the acting. There's no chemistry between the leads, the kids are made to act like adults who are trying to matchmake two people.

Watch if you like any of the actors otherwise there are far better dramas out there.