I'm too sleepy to get a hang of who is who but still it's Yu Nagori, it has to be good
Its not just sleep lol.. I dont know what the mangaka was thinking but its NOT a good idea to try to introduce lots of characters at once - its not very clear at all who is who especially if one was changing size.
When you start a new manga or anime series you really need to take a minute to clearly establish who is who.
No set-up, no intro? Straight into it? Hogwarts yuri milf harem, got it! Perfect!
That'll come in the next chapter. This one's more of a pilot in the general "Here's some new gays I came up with, lemme know if you wanna see more" sense.
I'm just teasing since this artist always draws such long necks.
I was going to say, they have a very ... interesting relationships with necks. The length seems mostly fine on the shorter characters, but once they start getting taller it just gets longer, like they're not scaling up properly. Part of it might also be the heads scaling to slowly.