- What is it: Kimi to Kanojo to Kanojo no Koi (YOU and ME and HER: A Love Story)
- What is it: Kamisama ni Natta Hi (The Day I Became a God)
- What is it: Kakegurui×× (Compulsive Gambler 2nd Season)
- What is it: Karakuri Circus
- What is it: Kiddy Girl-and
- What is it: K: Return of Kings
- What is it: Kimi no Koe wo Todoketai (Your Voice)
- What is it: Kimi no Hikari: Asagao to Kase-san
- What is it: Kimi no Suizou wo Tabetai (I Want to Eat Your Pancreas)
- What is it: Kono Oto Tomare! (Sounds of Life)
- What is it: Kuroko no Basket 3rd Season
- What is it: Kuroko no Basket 2nd Season
- What is it: Koi to Producer: EVOL×LOVE
- What is it: Kimi to Boku. 2
- What is it: Kiba
- What is it: Kamichama Karin
- What is it: Kaitou Saint Tail
- What is it: Kino no Tabi: The Beautiful World
- What is it: King of Thorn
- What is it: Kimi no Iru Machi (A Town Where You Live)
- What is it: Kanokon
- What is it: K: Missing Kings
- What is it: Kyoukaisenjou no Horizon II (Horizon in the Middle of Nowhere II)
- What is it: Koi to Senkyo to Chocolate (Love, Election and Chocolate)
- What is it: KonoSuba: God's Blessing on This Wonderful World!
- What is it: Kimetsu no Yaiba (Demon Slayer)
- What is it: Kamisama no Inai Nichiyoubi (Sunday Without God)
- What is it: Kurozuka
- What is it: Kuromukuro
- What is it: Kurenai
- What is it: Kuragehime (Princess Jellyfish)
- What is it: Kizumonogatari
- What is it: Koi Kaze
- What is it: Kengan Ashura
- What is it: Koutetsujou no Kabaneri: Unato Kessen
- What is it: Koi wa Ameagari no You ni (After the Rain)
- What is it: King's Game
- What is it: Kemono Jihen
- What is it: Kiddy Grade
- What is it: Kakegurui (Compulsive Gambler)
- What is it: Karakai Jouzu no Takagi-san (Teasing Master Takagi-san)
- What is it: KimiKiss Pure Rouge
- What is it: Kaiji: Against All Rules
- What is it: Kamichu!
- What is it: K-On!! 2nd Season
- What is it: Kimi ni Todoke 2nd Season
- What is it: Kyoukai no Kanata: Idol Saiban! Mayoi Nagara mo Kimi wo Sabaku Tami
- What is it: Kyoukai no Kanata Movie
- What is it: Kimi to Boku no Saigo no Senjou, Aruiwa Sekai ga Hajimaru Seisen (Our Last Crusade or the Rise of a New World)
- What is it: Kaze no Stigma
- What is it: Kemonozume
- What is it: Kamisama Kazoku
- What is it: Kyoukai no Kanata: I'll Be Here
- What is it: Kimi ga Nozomu Eien (Rumbling Hearts)
- What is it: Kaguya-sama wa Kokurasetai (Kaguya-sama: Love is War)
- What is it: Kotoura-san
- What is it: Kobayashi-san Chi no Maid Dragon (Miss Kobayashi's Dragon Maid)
- What is it: Knight's & Magic
- What is it: Knight's & Magic
- What is it: Knight's & Magic
- What is it: Knight's & Magic
- What is it: Knight's & Magic
- What is it: Knight's & Magic
- What is it: K
- What is it: Kyoukai Senjou no Horizon (Horizon in the Middle of Nowhere)
- What is it: Kyoukai no Rinne (Rin-ne)
- What is it: Kyou no Go no Ni (Today's Menu for the Emiya Family)
- What is it: Kimi to Boku
- What is it: Kaiji: Ultimate Survivor
- What is it: Koutetsujou no Kabaneri (Kabaneri of the Iron Fortress)
- What is it: Kujira no Kora wa Sajou ni Utau (Children of the Whales)
- What is: Kore wa Zombie Desu ka? (Is This a Zombie?)
- What is it: Koi to Uso (Love and Lies)
- What is it: Kamisama Dolls
- What is it: Kamisama no Memochou (Heaven's Memo Pad)
- What is it: Kanata no Astra
- What is it: Kanamemo
- What is it: K Project
- What is it: Kyou kara Maou!
- What is it: Kareshi Kanojo no Jijou (His and Her Circumstances)
- What is it: Kino no Tabi (Kino's Journey)
- What is it: Kill la Kill
- What is it: Kimi ni Todoke
- What is it: Kimi no Na wa (Your Name)
- What is it: Katanagatari
- What is it: KanColle (Kantai Collection)
- What is it: Kamisama Hajimemashita (Kamisama Kiss)
- What is it: Kaleido Star
- What is it: Kaichou wa Maid-sama!
- What is it: Kabaneri of the Iron Fortress
