Ricardo Welkin/Relationships

Anastasia Hoshin
Ricardo's relationship with Anastasia, and his membership in the Fang of Iron, spanned for more than 10 years. After Anastasia pledged to remove Ricardo's collar, he pledged his alliance to her. He had confidence in Anastasia's dreams for the future and her talent and thus decided to stand beside her to watch her legend grow.

Mimi Pearlbaton
Sometime in the past, they were abandoned by their parents and adopted by Ricardo and Anastasia ever since. In the events of the 5th arc, Ricardo recklessly attempts to find Mimi alone, even if it means disobeying Anastasia's orders.

Echidna (Artificial Spirit)
Ricardo and the members of the Fang of Iron was shocked when Echidna revealed herself as Anastasia's spirit. He shortly played with Echidna by squeezing and stretching her to his heart's content until he was satisfied and let go of her. Even though Ricardo didn't know much about Echidna, their relationship is somewhat decent.

Natsuki Subaru
Ricardo showed respect towards Subaru during the events of Arc 3. When Subaru noticed Ricardo was wearing the Hoshin logo, he figured that he knew Anastasia. Ricardo introduced himself in both name and race (as a kobold). On their way to the Flugel Tree to fight the White Whale, he complimented Subaru's ground dragon Patrasche and lifted Subaru's doubts about the outcome of the fight. Subaru realized that Ricardo and the members of the Fang of Iron were riding large wolves called Ligers. He asked him a question about whether a large beast man riding a large wolf made it a bit awkward. Ricardo didn't mind it, however, he warned him not to ask that question to the others as he considered that question offensive. During the fight against the White Whale, he saved Subaru by taking the hit, sustaining major injuries in the process. In exchange, he gave Subaru a message that the whale was "lighter". This gave Subaru a fighting chance.

Otto Suwen
During the events of Arc 3, Ricardo met with a tied up captive named Otto. While Otto bawled his eyes out, Ricardo handed him a tissue and tried to tell him jokes to cheer him up, but at the same time, he told Otto to man up. This gave Otto hope and gave him motivation to live. He also promised that he'd keep their conversation a secret.

Garfiel Tinsel
Ricardo was suspicious at Garfiel's relationship with Mimi at first, but when Garfiel transported the near-dying Mimi to the hospital, Ricardo shows him his gratitude by giving him a Saikeirei-like bow and treats him as a companion.