fun fact: Tsukuyomi/Selena wasn't planned to be a character in Season one, and I thought: Hey I should make a moon related character to be Ameno's sister! so I did do that and squeezed her into the last few chapters.
On the topic of chapters, IOA after Season 2 will get a SEASON THREE! Planned for the end of the year, btw. Season three is more chill, lighthearted and silly, and let's get a break from trauma, lol.