The Ultraman Manga continues with a pretty interesting chapter. One thing's for certain, the author is really great at crafting a long story. Here not really anything new is revealed, but there are two plot developments nonetheless. Shinjiro encounters a new alien while Moroboshi's investigation keeps on getting more complex.
The story as stated earlier focuses on two things, Moroboshi investigating and Shinjiro having a conversation with Jack before being confronted by an alien named Red. (More on that soon.) The chapter opens up with a pretty intriguing conversation between Moroboshi and Jack. It's cool because these two are complete opposites. Moroboshi is ultra serious with a zero sense of humor while Jack appears to be more of the laid back lazy type. The conversation with Jack and Shinjiro is just as good however, where we learn that Jack knows Shin is Ultraman.
Red is the new alien encountered. I don't know if the resemblance to Red King is intentional, but the name sort of confirms that. Sady his dialogue is written with alien words, so the reader has no idea what he's saying. We'll see in the next chapter if he's anything but a brute stooge.
Overall, the Seventeenth chapter is pretty solid. Not amazing, but there's enough interesting material to keep the reader invested.