Activity archive · 2016 — 2026
Every day I.O.I
was somewhere.
A calendar and catalog of group and member activities, from broadcasts and stages to fan signs and anniversaries.
January6 activities
- DramaDrinking SoloAn early television appearance in the slice-of-life comedy set around civil-service exam teachers and students.
- DramaEntourageChungha appeared with Nayoung in the Korean television adaptation.
- DramaEntourageNayoung appeared with Chungha in the Korean television adaptation.
- VarietyRunning ManI.O.I joined SBS's Running Man for a variety-show appearance built around the cast's games, missions and team challenges.
- RealityStandby I.O.IMnet's pre-debut reality series followed the eleven Produce 101 finalists as I.O.I was formed.
- VarietyWeekly IdolI.O.I appeared on the idol variety program for games, dance moments and member-focused introductions during the group's original promotion era.
January7 activities
- DramaChildren of the 20th CenturyMina's television acting debut in a coming-of-age romantic comedy.
- RealityIdol Drama Operation TeamAn idol reality program that developed a scripted project and the Girls Next Door collaboration.
- DramaIdol FeverA web drama that brought Yoojung and Doyeon together in an idol-centered story.
- DramaKang Deok-soon's Love HistoryA KBS Drama Special and Sohye's first television lead role.
- DramaReunited WorldsA supporting television role in a fantasy romance about friends separated by time.
- DramaSchool 2017Sejeong's first television lead role, centered on a high-school student pursuing her creative ambitions.
- VarietySister's Slam DunkA variety project that formed Girls Next Door, introducing Somi to a broader television audience.
January5 activities
- DramaBest ChickenA television romantic comedy led by Sohye as a webtoon writer.
- DramaHotel del LunaA fantasy drama set in a hotel for ghosts, with Mina portraying a newly recruited staff member.
- DramaI Wanna Hear Your SongA mystery-romance drama led by Sejeong as a timpanist with fragmented memories.
- FilmMoonlit WinterA feature film about a mother and daughter whose winter trip to Japan opens a family story.
- DramaMy First First LoveA coming-of-age streaming series where Chaeyeon led the ensemble as a university student.
January6 activities
- VarietyCast: The Golden Age of InsidersA variety program built around teamwork missions and changing character roles.
- DramaFlower of EvilA supporting role in tvN's thriller drama, portraying the younger version of Do Hae-soo.
- DramaHow to Buy a FriendA youth drama adapted from a webtoon, following students drawn into unexpected friendships.
- DramaLegend of FeiA Chinese wuxia drama with Jieqiong in the supporting cast.
- DramaMiss TruthA Chinese historical mystery in which a gifted coroner investigates cases in the Tang dynasty.
- DramaThe Uncanny CounterSejeong played a demon-hunting Counter across two seasons of the fantasy action series.
January5 activities
- DramaImitationA music-industry television drama adapted from the webtoon of the same name.
- DramaMoonshineA historical drama about a determined woman making liquor during a prohibition era.
- DramaOne the WomanA supporting role in the identity-switching romantic comedy.
- Musical theatreRed BookHer musical-theatre debut in a period story about a woman finding her own voice.
- DramaThe King's AffectionA historical drama about a crown prince who conceals her identity.
January9 activities
- DramaBe My PrincessA contemporary romance in which an actor wakes after an accident believing he is a prince.
- Musical theatreBungee Jumping of Their OwnA stage musical adapted from the Korean film, performed by Yeonjung during its 2022 run.
- DramaBusiness ProposalA romantic comedy in which Sejeong's character goes on a blind date in place of her friend.
- DramaCafe MinamdangA mystery-comedy drama in which Mina plays a former intelligence officer.
- Musical theatreCrash Landing on YouA musical-theatre adaptation of the hit drama, with Yeonjung playing pianist Seo Dan.
- RealityI Am SomiA personal reality series documenting Somi's day-to-day work and promotions.
- DramaThe Golden SpoonA contemporary fantasy drama about a student able to exchange families through a mysterious spoon.
- DramaThe Killer's Shopping ListA mystery thriller in which a supermarket receipt becomes a key clue.
- DramaToday's WebtoonA workplace drama following a former athlete beginning work at a webtoon editorial department.
January4 activities
- DramaBrewing LoveA romance drama pairing a passionate sales lead with a sensitive brewery owner.
- DramaFamily by ChoiceA warm ensemble drama about three people who grew up together and reconnect as adults.
- FilmIdiot Girls and School Ghost: School AnniversaryA feature-length school horror-comedy that gives Doyeon a leading screen role.
- Musical theatreLizzieA rock musical inspired by the Lizzie Borden story.