5? This season has Villainess Level 99, season 2 of Tsukimichi, The Wrong Way to Use Healing Magic, My Instant Death Ability is Overpowered, Fluffy Paradise, The Weakest Tamer, Doctor Elise, Sasaki and Peeps, Tales of Wedding Rings, and Ishura (sorta). We’re now at around 10 per season. Honestly, we’re actually at the peak of the genre right now (or tied for it) if you exclude ONAs and only care about full t.v. series that are your classic “transported to or reincarnated in another world” stories. For the past few years the average per season has actually been closer to 7, rather than 10. We’ve never had a full 15 Isekai t.v. series in a single season.
5? This season has Villainess Level 99, season 2 of Tsukimichi, The Wrong Way to Use Healing Magic, My Instant Death Ability is Overpowered, Fluffy Paradise, The Weakest Tamer, Doctor Elise, Sasaki and Peeps, Tales of Wedding Rings, and Ishura (sorta). We’re now at around 10 per season. Honestly, we’re actually at the peak of the genre right now (or tied for it) if you exclude ONAs and only care about full t.v. series that are your classic “transported to or reincarnated in another world” stories. For the past few years the average per season has actually been closer to 7, rather than 10. We’ve never had a full 15 Isekai t.v. series in a single season.