Haida (ハイ田) is an office worker and a supporting character of the Netflix Original series Aggretsuko.
Haida works alongside Retsuko in the accounting office and has a massive crush on her.
Haida's appearance is based off the Spotted Hyena and his name is a play off the Japanese pronunciation of 'Hyena'. Haida has brown fur, with a darker brown muzzle and ears and freckle-like spots of the same color on his cheeks, gray hands, tail and fur tufts in his ears, and a pronounced under bite. At work, Haida wears a white dress shirt, red tie, black dress pants, and brown dress shoes. His causal wear consists of a red and black striped t-shirt, black leather jacket, jeans, and boots.
It's hard to say what Haida's real personality is like because most of his time is spent fawning over Retsuko or drunk. Haida tries really hard to impress Retsuko with his initiative to fix her things and compliments her as best he can, but he cannot get himself to admit his feelings for her. He has a lot of trust for Fenneko to keep Retsuko safe at the mixer, and though he gets extremely jealous of Resasuke, Haida is still content that Retsuko is happy with him. This shows that he's kind and considerate, even if he's not getting what he wants.
Haida developed a crush on Retsuko sometime after they started working at the trading firm together. He primarily kept it a secret (with the exception of Fenneko) while he worked up the courage to confess to her. After Retsuko started dating Resasuke, Haida blamed no one but himself for waiting too long. Despite that, he took their relationship very hard and went out drinking alone, and got the flu that day due to laying outside in the rain. Retsuko visited him at the hospital where they talked about her break up with Resasuke and Haida eventually confessed to her. Retsuko rejected him, saying she knew how he felt and that she did like him (though we are unsure in what way), but that she simply wasn't ready for a relationship yet.
Haida developed a complex after the rejection and couldn't talk to or look at Retsuko for a while and had nightmares regarding the rejection. After Fenneko told Haida that he should just give up on Retsuko, Haida proclaimed he wasn't ready to and wanted to try again, but failed to ask her out to a Christmas party due to his nerves. After seeing Retsuko's lonely Instagram post while at a Christmas party with Fenneko, Haida ran back to the office thinking Retsuko would still be there working overtime. She wasn't there and he left, disappointed. While walking around, Haida ran into Retsuko, Gori, and Washimi leaving a ramen bar. Gori and Washimi walked off, leaving Retsuko in the care of Haida and the two decided to spend the rest of Christmas together alone.
Fenneko and Haida are good friends, co-workers, and drinking buddies. Until We Wish You A Metal Christmas, Fenneko was the only person who knew of Haida's secret crush on Retsuko. She would help him out as much as she could, like keeping guys away from Retsuko at mixers and social media stalking Retsuko to calm Haida when he thought she had a boyfriend. Fenneko stopped encouraging Haida after Retsuko rejected him and pleaded with him to move on with his life.
★According to Aggretsuko writer and director, Rarecho, Haida plays bass guitar and loves to sing punk rock but is really bad at it.
★Haida's bass guitar is modeled after a Fender Jazz Bass.
★Haida is voiced by Ben Diskin, who is known for voicing Numbah One from Codename: Kids Next Door.