I realize smth:3 12:05 so just remember his hair and eye colour it be important, LOOK 19:27 and there's with else too 22:35 THE BABY EYESSSS and look Coco earing that green hair dude has the same one just different ear!! My theory is that he gotten into some accident bcs the green hair dude has slot of scars example : 37:24 and he just don't want anyone finding him bcs that's why he keeps dyeing his hair!! Example: 37:23 so my overall theory is the blue hair girl and the green hair dude had a kid but he gotten into a accident and I'm assuming he was "dead" but really was alive or went missing and coco knows abt the child bcs he had a crush on the blue hair girl that's why he was so cold and distant to the blue hair girl and the red hair girl met that dude with green hair and like in the 2nd part everyone will know (sorry poor English and I keep forgetting the names😭 but if I noticed some more things I will comment again)
( kinda 2nd part of my theory) and that blue hair dude that attacked that blue hair girl I'm assuming he ( the blue hair dude that possessed that blue hair girl) attacked green hair dude so the green hair dude is in hiding and made himself he is dead but really he isn't