Seiden's Links
Despite Cassandre being really close to his sister, and despite them having a somewhat similar personality, Hippolyte and Cassandre actually does not like each other. Cassandre will show some respect to the dear brother of her friend, but does not enjoy spending time with him, and will rather avoid him. He likes to annoy them and easily manage to irritate her until they argue and she ends up sulking. Maybe Hippolyte actually likes her, though.
Cassandre and Argyros became friends at first sight. They instantly liked each other for some reason, and became really good friends, spending lots of time together, chatting about each other's interests, sharing ideas and asking for opinions. They are often seen showing affection to each other, simply touching each other, keeping a hand at the other's back while walking, or actually cuddling and nuzzling. And, in the warm intimacy of some sweet home, they might add some "with benefits" term to their friendship.
Hippolyte is Argyros' older brother. He was already a teen when she was born, and took his grand-brother responsabilities seriously. He took great care of her, helped with a loving and devoted mother. They grew close and complices despite being very different in their personality and interests. They still live together. They sometimes argue due to their different views on thing, especially their views of a "clean and tidy room", but it is never with angsts and never lasts long. They keep a sweet and loving relationship.
Seiden and Seiji are soulmates.
They are born together, and they belong together.
Seiji is his deepest friend, his confident, his protector, like a devoted guardian angel.
Seiji and Seiden are soulmates.
Seiji is watching over Seiden like a guardian, accompanying him since an unknown amount of time.