Tatsumaki/Relationships

King
King is one of the few heroes that Tatsumaki respects. She is impressed with King's supposed power and dedication to his hero activities such as when King spent the night in Z-City wiping out monsters. Despite this, she is still willing to berate King when she is annoyed, such as when King suggested contacting Metal Knight to take down the Dark Matter Thieves' spaceship as he does not have any attacks that can reach the spaceship.

Tatsumaki believes that King is the only competent hero as he protected Tareo when he sensed Tatsumaki's Psychic Wave.

Fubuki
Tatsumaki's younger sister and fellow esper. Fubuki highly respects Tatsumaki but believes she would be on top if not for her and Sweet Mask. Tatsumaki highly criticizes Fubuki for having followers and losing to Demonic Fan and Do-S but still saved her from both monsters. Tatsumaki believes her actions make her a great sister and she is unaware of how strained her actions have made their relationship, all while Tatsumaki is also too proud to admit that she genuinely loves her younger sister.

Though signs of her care is shown during the battle with the Monster Association, as she didn't wish for Fubuki to participate believing she could get hurt. Becoming enraged when she saw Fubuki injured after she had healed Genos, and angrily asked who hurt Fubuki before she was corrected. Though dismissive and believing Fubuki can't help her, she did show a moment of somber when Fubuki declared she wanted to save Tatsumaki and was momentarily happy at how stronger she became. Stating that she wished to make a good example for Fubuki.

Flashy Flash
Flashy Flash and Tatsumaki have an unpleasant relationship with one another just like how she treats other S-Class heroes. However, he appears to not be afraid of her and is willing to scold her back whenever she insults him.

Child Emperor
Despite his confidence in her power, Child Emperor greatly dislikes Tatsumaki's arrogant and selfish attitude and lack of strategical thinking since she thinks she can take on the entire Monster Association and the Human Monster Garou by herself to the point of berating the needs for a whole group S-Class heroes as a support in the operation.

While being polite from the outside, he is not above thinking of her as a brat rather than an adult. However, he seems to be very respectful to her as he offered her some orange juice in one of Yusuke Murata's art. Tatsumaki doesn't seem to like it, but she's not opposing it either.

Genos
Genos has a strained relationship with Tatsumaki due to her smashing him into walls or sending him flying away several times. While he has respect for her status and powers, he still considers her to be more like a brat than an adult.

Likewise, while Tatsumaki's opinion of him doesn't seem to be that high, she was still ready to offer him her drink when she was unable to finish it.

However, during Tatsumaki's battle with the fusion of Psykos and Orochi, Genos intervenes to assist her. At first, Tatsumaki is annoyed by his interference, but as Genos holds the fusion back for a short amount of time, it gives Tatsumaki the chance to rescue the rest of the heroes from the Monster Association Headquarters. She actually compliments Genos for his work, for it gave her the chance to finish off their opponent, demonstrating a newfound sense of respect for him. The two would later cooperate with each other along with Drive Knight in the continued battle against the fusion.

Bang
Tatsumaki seems to have some respect for Bang as she stood down when Bang told her to. Bang respects Tatsumaki, but is often irritated by her immaturity and her violent tendencies.

Sweet Mask
Tatsumaki has no respect for Sweet Mask, nonchalantly stating to him that she and the rest of the S-Class hate him and telling him he was too weak to join the strike team for the raid on the Monster Association and that he should stick to the support team.

During the raid when Sweet Mask was informing her of the brainwashed mercenaries he had killed in battle and the monster association executive he was currently hiding from, Tatsumaki reiterates his clear lack of ability for this kind of fight and his incompetence in properly dealing with said mercenaries and executive.

Saitama
In their first encounter, Tatsumaki didn't think much of Saitama due to his ranking and would insult him. She was even insulted by him ignoring her. Saitama mistook Tatsumaki for a child due to her small stature and found her to be annoying.

Their next encounter would be when they 'fought' in the Psychic Sisters Arc, which is when Tatsumaki discovers Saitama's true power. Saitama displayed concern and interest toward Tatsumaki, as he ran after her to see if she would be alright flying home with her injuries, and was interested in why Tatsumaki pushes everyone away. However, Tatsumaki simply yelled at him, causing him to be even more irritated at her behavior. Tatsumaki came close to revealing her past with Blast to Saitama before deciding not to.

Despite her dislike towards the A-Class hero, she still came to acknowledge his strength, even asking him about his name and when she trapped him underground she still admitted that this probably won't kill him. After their fight she admitted that he was "kinda strong", showing that her mind about him was slowly increasing, although she still believed that she would've beaten him in five seconds at her full strength and also called him an "asshole" for hiding his true strength and for going easy on her during their battle, much to Saitama's annoyance.

It is revealed in an audiobook that the two actually met in a haunted house at a festival Saitama worked at. Saitama thought Tatsumaki was a lost child and Tatsumaki called him a balding samurai and thought he was a ghost when her powers didn't work on him.

Blast
Due to Blast saving Tatsumaki when she was younger, Tatsumaki highly respects Blast. Blast would console Tatsumaki after saving her, telling her that she still has a sister that needs her protection and to ultimately not expect someone to come save her when the time comes. Tatsumaki would unintentionally heed this advice a bit far, distancing herself from everyone but her sister Fubuki. The memory of Blast saving her and his advice for her would provide her with the will to continue fighting Psykos and Orochi despite momentarily fainting due to injuries. The two would later join the Hero Association (not together) and are the two highest-ranked heroes in the association. Since Blast went missing, Tatsumaki has been wondering when he will return.