apparently there are some spoilers saying that caius will die while by sending kouichi back to his world, what i read is that he used too much of his power when he summoned kouichi and sending him back will kill him, but he lies to koucihi telling him that noithing will happen to him and he does it anyway because he loves him and when kouichi is going back the wolf tells him that caius will die so he tries to quickly return to him but it's too late already the spoilers show caius apparently dying and we see kouichi sorrounded with crystals of caius memories i think:
https://www.facebook.com/mileeeeeee/posts/160552798942242?hc_location=ufi
https://www.facebook.com/mileeeeeee/photos/a.112767130387476/160584552272400/?type=3&theater
https://www.facebook.com/mileeeeeee/photos/a.112767130387476/160552775608911/?type=3&theater
https://www.facebook.com/photo.php?fbid=299136814773131&set=p.299136814773131&type=3&theater
https://www.facebook.com/mileeeeeee/posts/160552798942242?hc_location=ufi
https://www.facebook.com/mileeeeeee/photos/a.112767130387476/160584552272400/?type=3&theater
https://www.facebook.com/mileeeeeee/photos/a.112767130387476/160552775608911/?type=3&theater
https://www.facebook.com/photo.php?fbid=299136814773131&set=p.299136814773131&type=3&theater
2020-07-12 10:05 marked
omg spoilers