The Summer 2021 season had 31 premieres in this guide, against 44 the season before. 13 are manga adaptations. Top genres: fantasy (22%), isekai (14%) and dark fantasy (8%).
Tsukimichi: Moonlit Fantasy
July 7, 2021, C2C, isekai and fantasy · 37 ep.
July 11, 2021, Sunrise · 24 ep.
The Idaten Deities Know Only Peace
July 23, 2021, MAPPA, dark fantasy and fantasy · 11 ep.
The Detective Is Already Dead
July 4, 2021, ENGI, mystery and romantic comedy · 12 ep.
Re-Main
July 4, 2021, MAPPA, sports · 12 ep.
The Aquatope on White Sand
July 9, 2021, P.A. Works · 24 ep.
Sonny Boy
July 15, 2021, Madhouse, science fiction · 12 ep.
Fena: Pirate Princess
August 15, 2021, Production I.G · 12 ep.
Scarlet Nexus
July 1, 2021, Sunrise, science fiction · 26 ep.
Night Head 2041
July 15, 2021, Shirogumi, psychological and thriller · 12 ep.
How a Realist Hero Rebuilt the Kingdom
July 4, 2021, J.C.Staff, isekai and fantasy · 26 ep.
The Case Study of Vanitas
July 3, 2021, Bones, dark fantasy and fantasy · 24 ep.
Kick & Slide
July 7, 2021 · 12 ep.
Battle Game in 5 Seconds
July 12, 2021, SynergySP, action · 12 ep.
Drugstore in Another World
July 7, 2021, EMT Squared, isekai and fantasy · 12 ep.
Remake Our Life!
July 3, 2021, Feel, drama and romance · 12 ep.
Mother of the Goddess' Dormitory
July 14, 2021, Asread · 10 ep.
Kageki Shojo!!
July 4, 2021, Pine Jam · 13 ep.
Girlfriend, Girlfriend
July 3, 2021, Tezuka Productions, school and romantic comedy · 24 ep.
The Duke of Death and His Maid
July 4, 2021, J.C.Staff, romantic comedy · 24 ep.
Life Lessons with Uramichi Oniisan
July 6, 2021, Studio Blanc, comedy · 13 ep.
Seirei Gensouki: Spirit Chronicles
July 6, 2021, TMS Entertainment, isekai and fantasy · 24 ep.
The Great Jahy Will Not Be Defeated!
August 1, 2021, Silver Link, comedy and slice of life · 20 ep.
D Cide Traumerei
July 10, 2021, Sanzigen · 13 ep.
The Dungeon of Black Company
July 9, 2021, Silver Link, fantasy and isekai · 12 ep.
Ore, Tsushima
July 3, 2021, Fanworks · 12 ep.
Peach Boy Riverside
July 1, 2021, Asahi Production, fantasy · 12 ep.
Black Alice
July 2, 2021, dark fantasy
Alice Gear Aegis: Doki! Actress Darake no Mermaid Grand Prix
Nomad
Planetarian: Snow Globe
Okuruto Noboru, science fantasy
The Summer
September 4, 2021, Red Dog Culture House · 7 ep.