The Color That Rainbows Forgot

Inside the "big house" was a secret meeting that only those attending knew of. "So who are they exactly?" Ava ask pointing to the two girls that had returned with Sinha. "I'm Mio." The blonde cheerfully smiles. "I'm Lucy" the black and red haired girl not as cheerfully sighs. "Oh yea you guys go to our school" I blurt out.
"Oh right you bumped into me the other day." Mio realizes. "Can we address why we're here please?" Annabeth frowns. "Ah yes." Chiron snaps back to his senses. "I assume you've all heard of the primordial gods?".
Everyone nods in agreement. "Well four of them decided they want to step down, but someone has to take their places." He continues.
"I didn't think they could do that?" Jason objects. "Neither did I but they write the rules so I guess anything and everything is possible." Chiron agrees.
"May I ask Seth, Sinha, Ava, and Cameron to step forward?" He ask but more like orders us. We all walk up hesistantly and face the others.
"Demigods, I present to you the second-generation of primordial gods." He announces before adding "Seth crafted out of herself by Nyx, Sinha by Phanes, Ava by Hemera, and Cameron by Chaos."

Notes

If you want to guess what anime my profile picture is from and get it right I'll update any story of your choice and give you a shoutout.