Read the Spanish-translated chapters. I'm more interested in what this manga's concept is rather than the story which seems stitched together from a lot of things (gag-manga characters entering a realistic setting, alien invasion, multiverse parallels, rescue mission) and with what's available I haven't gotten a grasp on how well it does these things. Pretty well-made visuals.
If you aren't aware the official account for the manga posted on
Twitter two videos that tackle the question of Yuki Ikeda's (Thunder 3's author) identity and it being somehow related to Hiroya Oku (Gantz, Gigant, Inuyashiki).
From the little I could understand from the translation given by Youtube nothing much is answered, they explore the theory that it's either: a relative of Oku, an assistant making their debut, or Oku himself. The first two are disproven in the second video by the editor for Thunder 3 but the last one isn't for some reason. Idk, to me, it's just the promotion for the manga more than a real deep dive, aren't there laws about a mangaka's identity? Even then I'd imagine the author must be aware of this theory popping up and it's promoting the programs on Twitter so it must be made with his permission in some way. Btw Oku commented
his works were being ignored by the industry which is the exact opposite to the way Thunder 3 is being treated, with the TV programs and all. The validity of his claim... I mean he's gotten live-action/animated movies and series based on his work but hasn't done much besides Gantz: E nowadays.
Not like Oku created the blend between the 3D and 2D visuals in manga, as well as the designs, but it's hard not to admit it's Gantz-inspired. Hell, some of the aliens look similar to the ones in the Katastrophe arc (idk if the language they use is the same as the one seen in Gantz).