Unbalance x2: After Story manga summary: Sequel to “Unbalance x2”. 25-year-old Nah Hae-Young is a high school teacher. She’s pretty popular and well-received by her students, but she has one huge secret… She’s actually in a relationship with one of her students, Myung Jin-Ho! This is her story of trying to navigate her life without allowing too many stirrups from her young lustful boyfriend!
Note: This series is a loose adaption/spin-off of the “Unbalance x2” manga with a simplified & rewritten plot for webtoon format. It's not actually a direct sequel, despite the series name.