Asmodeus/Relationships

Mammon
While not having been shown together it is implied in "Oops" that Asmodeus has a close relationship with his fellow Deadly Sin, Mammon, calling him by a familiar nickname, "Mam", when discussing the Greed Ring with Fizzarolli. However, the latter added that Asmodeus is "not a fan of the Mammon thing." This possibly hinting that Asmodeus has a sort of dislike towards Mammon.

Blitzo
While the two have not yet communicated directly with each other, when Stolas meets with Asmodeus to request an Asmodean Crystal for Blitzo's business Asmodeus refused as to not support someone that Fizzarolli hated, but didn't seem to hold any hate for Blitzo personally.

Moxxie
Asmodeus made a passing comment and mockery of the latter's romantic relationship with Millie. After Moxxie's song, Asmodeus mocks Millie and Moxxie's display of affection and angrily tells them to get out.

Fizzarolli
Fizzarolli works at Asmodeus' club, as shown in the episode "Ozzie's". Fizzarolli appears to be valued enough to be allowed seating with Asmodeus at his private balcony. The two share a mutual disdain of sentimental relationships, and they take part in mocking others, such as Moxxie.

Asmodeus is suggested to have a close relationship with Fizzarolli, as he worriedly rushed to Fizzarolli after the latter was struck by Millie's guitar, they can also be seen hugging each other during Moxxie's love song. This is highlighted during "Oops" where it is revealed that the two are in a romantic relationship, but because Asmodeus is supposed to represent lust, the two have to hide their relationship so he doesn't come off as a hypocrite.

Asmodeus becomes concerned when Fizzarolli decides to go to the Greed Ring by himself, and became furious when Crimson and Striker took Fizzarolli hostage in an attempt to threaten him and he spends the whole episode of "Oops" impatiently trying to get him back through hastily making contracts with Crimson, only stopped from doing so by Stolas.

Much to Asmodeus's relief by the end of the episode Fizzarolli returns. After that he starts being more open in his relationship with him around his employees, threatening to silence them if they talk about it. He also agrees to give Blitzo an Asmodean Crystal after previously refusing to give him one due to Fizzarolli's bitter past with him, doing so only because Fizzarolli allowed it to be so.

Stolas
While it has not been confirmed what type of relationship Stolas has with Asmodeus, it is implied that Stolas is at least unnerved by him; this is further suggested when Stolas attempted to leave the venue while being lectured to by Asmodeus.

In "Western Energy", during the texts with Blitzo, it shows that Stolas finds Asmodeus to be invasive when it comes to his humor. But did think what Asmodeus said about him was funny.

In "Oops", the two show an amical business relationship as Stolas meets with Asmodeus to discussing getting an Asmoedean Crystal for Blitzo, which he ultimately refused to do so initially due to respecting Fizzarolli's dislike of Blitzo. Later, when Crimson holds Fizzarolli hostage in order to threaten Asmodeus into signing contracts for his freedom, Stolas volunteers to read them so Asmodeus doesn't make any regretful decisions.

Furthermore, it shows that Stolas respect Asmodeus as a higher authoritive of power (as it is confirmed that the latter is the king of the Lust Ring), even going to mention him as "sire" during the contract signing.

Асмодей/Взаимоотношения