On Wednesday, May 10, Kodansha officially launched its K MANGA service exclusively for US readers. Below is the approximately 61 total simulpub titles that can be read the same day and date as Japan:

Brand New Kodansha Titles (Has not been available officially in English):

From L to R: Tomodachi Game, The Lady's Servant, Hiragi-san's House of Vampires, GACHIAKUTA, The Warrior and the Barbaric King, The Fragrant Flower Blooms With Dignity, BLUE LOCK -EPISODE NAGI-, & Retropolis Scratch

Mikoto Yamaguchi & Yuki Sato’s Tomodachi Game
Hoshino Taguchi’s The Lady’s Servant
Rokujuuyon Okazawa, Rurekuchie & Sage Joh’s Chillin’ in My 30s After Getting Fired From the Demon King’s Army
Miki Yoshikawa’s Hiragi-san’s House of Vampires
Aki Hagiu, Hiroto Kanou, & Kayahara’s The Inferior Magic Swordsman
Shikiso Utsuzawa, Riichu, & Chidori Ishigo’s Second-Life Cheat Mage: Life Turned Out to Be Easy after Being Reincarnated 1,000 Years into the Future
Kei Urana’s GACHIAKUTA
Kotoba Noriaki’s The Warrior Princess and the Barbaric King
Kousuke Unagi & Yuuri’s I Left my A-Rank Party to Help My Former Students Reach the Dungeon Depths!
Monji Yuki, Alto, & Yuunagi’s The Banished Court Magician Aims to Become the Strongest
Sai Sumimori’s Reincarnated Adventurer of the Curse Mark – Enjoying Freedom As The Strongest Sage –
LA Gun, Rei Nakajima & Maruboro Akai’s Useless Skill Auto Mode: Activate
Saka Mikami’s The Fragrant Flower Blooms With Dignity
Yuu Kuraishi & Kazu Inabe’s Starving Anonymous Re:Velation (The sequel to Starving Anonymous)
Yousuke Kaneda’s The Classroom of a Black Cat and a Witch
Muneyuki Kaneshiro & Kota Sannomiya’s BLUE LOCK -EPISODE NAGI-
Natsukawaguchi Yukinori’s Tokyo Revengers: A Letter from Keisuke Baji
Kazuma Kondou & Jinsei Kataoka’s Retropolis Scratch

Titles previously only available in volume format:

Naoki Yamakawa & Akinari Nao’s I’m Standing on a Million Lives
Aki Iwai’s Abe-kun’s Got Me Now!
Nanashi’s Don’t Toy With Me, Miss Nagatoro
Fuse, Taiki Kawakami, & Mitz Vah’s That Time I Got Reincarnated as a Slime
Kamome Shirahama’s Witch Hat Atelier
Miki Yoshikawa’s A Couple of Cuckoos
Shuichi Shigeno’s MF GHOST
Reiji Miyajima’s Rent-a-Girlfriend
Shinobu Ohtaka’s Orient
Hiro Mashima & Atsuo Ueda’s Fairy Tail: 100 Years Quest
Muneyuki Kaneshiro & Yusuke Nomura’s Blue Lock
Suzuhito Yasuda’s Yozakura Quartet
Naito Marcey’s Tying the Knot with an Amagami Sister
Ran Kuze’s Medaka Kuroiwa is Impervious to My Charms
Tsubasa Yamaguchi’s Blue Period
Coolkyousinnjya & Johanne’s Peach Boy Riverside
Adachitoka’s Noragami Stray God
Katsuhisa Minami’s The Fable
Shiroichi Amaui, Konekoneko & Tamagonokimi’s The Hero Life of a (Self-Proclaimed) “Mediocre” Demon!
Soichiro Yamamoto’s When Will Ayumu Make His Move?
Nazuna Miki, Mawata & Subachi’s My Unique Skill Makes Me OP even at Level 1
Sai Sumimori & Ai Takahashi’s Am I Actually the Strongest?
Broccoli Lion, Hiiro Akikaze, & sime’s The Great Cleric
Yuu Shimizu & Makoto Aogiri’s Otherworldly Munchkin: Let’s Speedrun the Dungeon with Only 1 HP!
FUNA, Keisuke Motoe, & Touzai’s Saving 80,000 Gold in Another World for my Retirement
Hiroyuki’s Girlfriend, Girlfriend
Naoki Yamakawa & Masashi Asaki’s My Home Hero
Kimitake Yoshioka’s TenPuru: No One Can Live on Loneliness (Has been available exclusively on Bookwalker)
Nana Mikoshiba, Norihito Sasaki & Riko Korie’s The Iceblade Sorcerer Shall Rule the World
Miraijin A, Natsumi Inoue, & Jimmy’s As a Reincarnated Aristocrat, I’ll Use My Appraisal Skill to Rise in the World
Kenkyo na Circle, Yōsuke Kokuzawa, & Meru’s I Was Reincarnated as the 7th Prince so I Can Take My Time Perfecting My Magical Ability
Ibarakino, Morohoshi Fuji, & Yu Hitaki’s Even Given the Worthless “Appraiser” Class, I’m Actually the Strongest
Fujino Omori & Toshi Aoi’s Wistoria: Wand and Sword
Satoru Nii’s WIND BREAKER
Kouji Seo’s The Café Terrace and its Goddesses

Titles previously simulpubbed in English by Kodansha:

Yoshitoki Oima’s To Your Eternity
Nakaba Suzuki’s The Seven Deadly Sins: Four Knights of the Apocalypse
Yoshiki Tanaka & Hiromu Arakawa’s The Heroic Legend of Arslan
Hiro Mashima’s EDENS ZERO
Kenji Inoue & Kimitake Yoshioka’s Grand Blue Dreaming
Taku Kuwabara’s Drifting Dragons
Katarina & Ryosuke Fuji’s Shangri-La Frontier
Junichi Fujisaku, Yuki Yoshimoto, & Shirow Masamune’s The Ghost in the Shell: The Human Algorithm